diff --git a/.travis.yml b/.travis.yml
index ac4f9c9635..c58495b1f4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -62,6 +62,20 @@ before_install:
       docker run -d -p 7000:7000 -p 7001:7001 -p 7002:7002 -p 7003:7003 -p 7004:7004 -p 7005:7005 -p 7006:7006 -p 7007:7007 -e "STANDALONE=true" --name redis-cluster grokzen/redis-cluster:5.0.4
       export REDIS_CLUSTER_HOSTS='localhost:7000 localhost:7001 localhost:7002 localhost:7003 localhost:7004 localhost:7005'
 
+    - |
+      # Start Kafka and install an up-to-date librdkafka
+      docker network create kafka_network
+      docker pull wurstmeister/zookeeper:3.4.6
+      docker run -d --network kafka_network --name zookeeper wurstmeister/zookeeper:3.4.6
+      docker pull wurstmeister/kafka:2.12-2.3.1
+      docker run -d -p 9092:9092 --network kafka_network -e "KAFKA_AUTO_CREATE_TOPICS_ENABLE=false" -e "KAFKA_CREATE_TOPICS=test-topic:1:1:compact" -e "KAFKA_ADVERTISED_HOST_NAME=kafka" -e "KAFKA_ZOOKEEPER_CONNECT=zookeeper:2181" -e "KAFKA_ADVERTISED_PORT=9092" --name kafka wurstmeister/kafka:2.12-2.3.1
+      export KAFKA_BROKER=kafka:9092
+      sudo sh -c 'echo "\n127.0.0.1  kafka\n" >> /etc/hosts'
+
+      mkdir /tmp/librdkafka
+      curl https://codeload.github.com/edenhill/librdkafka/tar.gz/v0.11.6 | tar xzf - -C /tmp/librdkafka
+      (cd  /tmp/librdkafka/librdkafka-0.11.6 && ./configure && make && sudo make install)
+
     - |
       # General configuration
       set -e
@@ -175,6 +189,7 @@ before_install:
           tfold ext.igbinary tpecl igbinary-3.1.2 igbinary.so $INI
           tfold ext.zookeeper tpecl zookeeper-0.7.1 zookeeper.so $INI
           tfold ext.amqp tpecl amqp-1.9.4 amqp.so $INI
+          tfold ext.rdkafka tpecl rdkafka-4.0.2 rdkafka.so $INI
           tfold ext.redis tpecl redis-4.3.0 redis.so $INI "no"
       done
     - |
diff --git a/src/Symfony/Component/VarDumper/CHANGELOG.md b/src/Symfony/Component/VarDumper/CHANGELOG.md
index 94b1c17d1d..b1638017ca 100644
--- a/src/Symfony/Component/VarDumper/CHANGELOG.md
+++ b/src/Symfony/Component/VarDumper/CHANGELOG.md
@@ -1,6 +1,11 @@
 CHANGELOG
 =========
 
+5.1.0
+-----
+
+ * added `RdKafka` support
+
 4.4.0
 -----
 
diff --git a/src/Symfony/Component/VarDumper/Caster/RdKafkaCaster.php b/src/Symfony/Component/VarDumper/Caster/RdKafkaCaster.php
new file mode 100644
index 0000000000..bd3894ec11
--- /dev/null
+++ b/src/Symfony/Component/VarDumper/Caster/RdKafkaCaster.php
@@ -0,0 +1,187 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\VarDumper\Caster;
+
+use RdKafka;
+use RdKafka\Conf;
+use RdKafka\Exception as RdKafkaException;
+use RdKafka\KafkaConsumer;
+use RdKafka\Message;
+use RdKafka\Metadata\Broker as BrokerMetadata;
+use RdKafka\Metadata\Collection as CollectionMetadata;
+use RdKafka\Metadata\Partition as PartitionMetadata;
+use RdKafka\Metadata\Topic as TopicMetadata;
+use RdKafka\Topic;
+use RdKafka\TopicConf;
+use RdKafka\TopicPartition;
+use Symfony\Component\VarDumper\Cloner\Stub;
+
+/**
+ * Casts RdKafka related classes to array representation.
+ *
+ * @author Romain Neutron <imprec@gmail.com>
+ */
+class RdKafkaCaster
+{
+    public static function castKafkaConsumer(KafkaConsumer $c, array $a, Stub $stub, $isNested)
+    {
+        $prefix = Caster::PREFIX_VIRTUAL;
+
+        try {
+            $assignment = $c->getAssignment();
+        } catch (RdKafkaException $e) {
+            $assignment = [];
+        }
+
+        $a += [
+            $prefix.'subscription' => $c->getSubscription(),
+            $prefix.'assignment' => $assignment,
+        ];
+
+        $a += self::extractMetadata($c);
+
+        return $a;
+    }
+
+    public static function castTopic(Topic $c, array $a, Stub $stub, $isNested)
+    {
+        $prefix = Caster::PREFIX_VIRTUAL;
+
+        $a += [
+            $prefix.'name' => $c->getName(),
+        ];
+
+        return $a;
+    }
+
+    public static function castTopicPartition(TopicPartition $c, array $a)
+    {
+        $prefix = Caster::PREFIX_VIRTUAL;
+
+        $a += [
+            $prefix.'offset' => $c->getOffset(),
+            $prefix.'partition' => $c->getPartition(),
+            $prefix.'topic' => $c->getTopic(),
+        ];
+
+        return $a;
+    }
+
+    public static function castMessage(Message $c, array $a, Stub $stub, $isNested)
+    {
+        $prefix = Caster::PREFIX_VIRTUAL;
+
+        $a += [
+            $prefix.'errstr' => $c->errstr(),
+        ];
+
+        return $a;
+    }
+
+    public static function castConf(Conf $c, array $a, Stub $stub, $isNested)
+    {
+        $prefix = Caster::PREFIX_VIRTUAL;
+
+        foreach ($c->dump() as $key => $value) {
+            $a[$prefix.$key] = $value;
+        }
+
+        return $a;
+    }
+
+    public static function castTopicConf(TopicConf $c, array $a, Stub $stub, $isNested)
+    {
+        $prefix = Caster::PREFIX_VIRTUAL;
+
+        foreach ($c->dump() as $key => $value) {
+            $a[$prefix.$key] = $value;
+        }
+
+        return $a;
+    }
+
+    public static function castRdKafka(\RdKafka $c, array $a, Stub $stub, $isNested)
+    {
+        $prefix = Caster::PREFIX_VIRTUAL;
+
+        $a += [
+            $prefix.'out_q_len' => $c->getOutQLen(),
+        ];
+
+        $a += self::extractMetadata($c);
+
+        return $a;
+    }
+
+    public static function castCollectionMetadata(CollectionMetadata $c, array $a, Stub $stub, $isNested)
+    {
+        $a += iterator_to_array($c);
+
+        return $a;
+    }
+
+    public static function castTopicMetadata(TopicMetadata $c, array $a, Stub $stub, $isNested)
+    {
+        $prefix = Caster::PREFIX_VIRTUAL;
+
+        $a += [
+            $prefix.'name' => $c->getTopic(),
+            $prefix.'partitions' => $c->getPartitions(),
+        ];
+
+        return $a;
+    }
+
+    public static function castPartitionMetadata(PartitionMetadata $c, array $a, Stub $stub, $isNested)
+    {
+        $prefix = Caster::PREFIX_VIRTUAL;
+
+        $a += [
+            $prefix.'id' => $c->getId(),
+            $prefix.'err' => $c->getErr(),
+            $prefix.'leader' => $c->getLeader(),
+        ];
+
+        return $a;
+    }
+
+    public static function castBrokerMetadata(BrokerMetadata $c, array $a, Stub $stub, $isNested)
+    {
+        $prefix = Caster::PREFIX_VIRTUAL;
+
+        $a += [
+            $prefix.'id' => $c->getId(),
+            $prefix.'host' => $c->getHost(),
+            $prefix.'port' => $c->getPort(),
+        ];
+
+        return $a;
+    }
+
+    private static function extractMetadata($c)
+    {
+        $prefix = Caster::PREFIX_VIRTUAL;
+
+        try {
+            $m = $c->getMetadata(true, null, 500);
+        } catch (RdKafkaException $e) {
+            return [];
+        }
+
+        return [
+            $prefix.'orig_broker_id' => $m->getOrigBrokerId(),
+            $prefix.'orig_broker_name' => $m->getOrigBrokerName(),
+            $prefix.'brokers' => $m->getBrokers(),
+            $prefix.'topics' => $m->getTopics(),
+        ];
+    }
+}
diff --git a/src/Symfony/Component/VarDumper/Cloner/AbstractCloner.php b/src/Symfony/Component/VarDumper/Cloner/AbstractCloner.php
index 9e548caae3..06fa4884e9 100644
--- a/src/Symfony/Component/VarDumper/Cloner/AbstractCloner.php
+++ b/src/Symfony/Component/VarDumper/Cloner/AbstractCloner.php
@@ -160,6 +160,18 @@ abstract class AbstractCloner implements ClonerInterface
         ':persistent stream' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castStream'],
         ':stream-context' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castStreamContext'],
         ':xml' => ['Symfony\Component\VarDumper\Caster\XmlResourceCaster', 'castXml'],
+
+        'RdKafka' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castRdKafka'],
+        'RdKafka\Conf' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castConf'],
+        'RdKafka\KafkaConsumer' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castKafkaConsumer'],
+        'RdKafka\Metadata\Broker' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castBrokerMetadata'],
+        'RdKafka\Metadata\Collection' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castCollectionMetadata'],
+        'RdKafka\Metadata\Partition' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castPartitionMetadata'],
+        'RdKafka\Metadata\Topic' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castTopicMetadata'],
+        'RdKafka\Message' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castMessage'],
+        'RdKafka\Topic' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castTopic'],
+        'RdKafka\TopicPartition' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castTopicPartition'],
+        'RdKafka\TopicConf' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castTopicConf'],
     ];
 
     protected $maxItems = 2500;
diff --git a/src/Symfony/Component/VarDumper/Tests/Caster/RdKafkaCasterTest.php b/src/Symfony/Component/VarDumper/Tests/Caster/RdKafkaCasterTest.php
new file mode 100644
index 0000000000..e14e0f927d
--- /dev/null
+++ b/src/Symfony/Component/VarDumper/Tests/Caster/RdKafkaCasterTest.php
@@ -0,0 +1,293 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\VarDumper\Tests\Caster;
+
+use PHPUnit\Framework\TestCase;
+use RdKafka\Conf;
+use RdKafka\KafkaConsumer;
+use RdKafka\Producer;
+use RdKafka\TopicConf;
+use Symfony\Component\VarDumper\Test\VarDumperTestTrait;
+
+/**
+ * @requires extension rdkafka
+ */
+class RdKafkaCasterTest extends TestCase
+{
+    use VarDumperTestTrait;
+
+    private const TOPIC = 'test-topic';
+    private const GROUP_ID = 'test-group-id';
+
+    private $hasBroker = false;
+    private $broker;
+
+    protected function setUp(): void
+    {
+        if (!$this->hasBroker && getenv('KAFKA_BROKER')) {
+            $this->broker = getenv('KAFKA_BROKER');
+            $this->hasBroker = true;
+        }
+    }
+
+    public function testDumpConf()
+    {
+        $conf = new Conf();
+        $conf->setErrorCb(function ($kafka, $err, $reason) {});
+        $conf->setDrMsgCb(function () {});
+        $conf->setRebalanceCb(function () {});
+
+        // BC with earlier version of extension rdkafka
+        foreach (['setLogCb', 'setOffsetCommitCb', 'setStatsCb', 'setConsumeCb'] as $method) {
+            if (method_exists($conf, $method)) {
+                $conf->{$method}(function () {});
+            }
+        }
+
+        $expectedDump = <<<EODUMP
+RdKafka\Conf {
+  builtin.features: "gzip,snappy,ssl,sasl,regex,lz4,sasl_gssapi,sasl_plain,sasl_scram,plugins"
+  client.id: "rdkafka"
+  message.max.bytes: "1000000"
+  message.copy.max.bytes: "65535"
+  receive.message.max.bytes: "100000000"
+  max.in.flight.requests.per.connection: "1000000"
+  metadata.request.timeout.ms: "60000"
+  topic.metadata.refresh.interval.ms: "300000"
+  metadata.max.age.ms: "-1"
+  topic.metadata.refresh.fast.interval.ms: "250"
+  topic.metadata.refresh.fast.cnt: "10"
+  topic.metadata.refresh.sparse: "true"
+  debug: ""
+  socket.timeout.ms: "60000"
+  socket.blocking.max.ms: "1000"
+  socket.send.buffer.bytes: "0"
+  socket.receive.buffer.bytes: "0"
+  socket.keepalive.enable: "false"
+  socket.nagle.disable: "false"
+  socket.max.fails: "%d"
+  broker.address.ttl: "1000"
+  broker.address.family: "any"
+  reconnect.backoff.jitter.ms: "500"
+  statistics.interval.ms: "0"
+  enabled_events: "0"
+  error_cb: "0x%x"
+%A
+  log_level: "6"
+  log.queue: "%s"
+  log.thread.name: "true"
+  log.connection.close: "true"
+  socket_cb: "0x%x"
+  open_cb: "0x%x"
+  internal.termination.signal: "0"
+  api.version.request: "true"
+  api.version.request.timeout.ms: "10000"
+  api.version.fallback.ms: "1200000"
+  broker.version.fallback: "0.9.0"
+  security.protocol: "plaintext"
+  sasl.mechanisms: "GSSAPI"
+  sasl.kerberos.service.name: "kafka"
+  sasl.kerberos.principal: "kafkaclient"
+  sasl.kerberos.kinit.cmd: "kinit -S "%{sasl.kerberos.service.name}/%{broker.name}" -k -t "%{sasl.kerberos.keytab}" %{sasl.kerberos.principal}"
+  sasl.kerberos.min.time.before.relogin: "60000"
+  partition.assignment.strategy: "range,roundrobin"
+  session.timeout.ms: "30000"
+  heartbeat.interval.ms: "1000"
+  group.protocol.type: "consumer"
+  coordinator.query.interval.ms: "600000"
+  enable.auto.commit: "true"
+  auto.commit.interval.ms: "5000"
+  enable.auto.offset.store: "true"
+  queued.min.messages: "100000"
+  queued.max.messages.kbytes: "1048576"
+  fetch.wait.max.ms: "100"
+%A
+  fetch.min.bytes: "1"
+  fetch.error.backoff.ms: "500"
+  offset.store.method: "broker"
+%A
+  enable.partition.eof: "true"
+  check.crcs: "false"
+  queue.buffering.max.messages: "100000"
+  queue.buffering.max.kbytes: "1048576"
+  queue.buffering.max.ms: "0"
+%A
+  compression.codec: "none"
+  batch.num.messages: "10000"
+  delivery.report.only.error: "false"
+  dr_msg_cb: "0x%x"
+}
+EODUMP;
+
+        $this->assertDumpMatchesFormat($expectedDump, $conf);
+    }
+
+    public function testDumpProducer()
+    {
+        if (!$this->hasBroker) {
+            $this->markTestSkipped('Test requires an active broker');
+        }
+
+        $producer = new Producer(new Conf());
+        $producer->addBrokers($this->broker);
+
+        $expectedDump = <<<EODUMP
+RdKafka\Producer {
+  -error_cb: null
+  -dr_cb: null
+  out_q_len: %d
+  orig_broker_id: 1001
+  orig_broker_name: "$this->broker/1001"
+  brokers: RdKafka\Metadata\Collection {
+    +0: RdKafka\Metadata\Broker {
+      id: 1001
+      host: "%s"
+      port: %d
+    }
+  }
+  topics: RdKafka\Metadata\Collection {
+    +0: RdKafka\Metadata\Topic {
+      name: "%s"
+      partitions: RdKafka\Metadata\Collection {
+        +0: RdKafka\Metadata\Partition {
+          id: 0
+          err: 0
+          leader: 1001
+        }%A
+      }
+    }%A
+  }
+}
+EODUMP;
+
+        $this->assertDumpMatchesFormat($expectedDump, $producer);
+    }
+
+    public function testDumpTopicConf()
+    {
+        $topicConf = new TopicConf();
+        $topicConf->set('auto.offset.reset', 'smallest');
+
+        $expectedDump = <<<EODUMP
+RdKafka\TopicConf {
+  request.required.acks: "1"
+  request.timeout.ms: "5000"
+  message.timeout.ms: "300000"
+%A
+  auto.commit.enable: "true"
+  auto.commit.interval.ms: "60000"
+  auto.offset.reset: "smallest"
+  offset.store.path: "."
+  offset.store.sync.interval.ms: "-1"
+  offset.store.method: "broker"
+  consume.callback.max.messages: "0"
+}
+EODUMP;
+
+        $this->assertDumpMatchesFormat($expectedDump, $topicConf);
+    }
+
+    public function testDumpKafkaConsumer()
+    {
+        if (!$this->hasBroker) {
+            $this->markTestSkipped('Test requires an active broker');
+        }
+
+        $conf = new Conf();
+        $conf->set('metadata.broker.list', $this->broker);
+        $conf->set('group.id', self::GROUP_ID);
+
+        $consumer = new KafkaConsumer($conf);
+        $consumer->subscribe([self::TOPIC]);
+
+        $expectedDump = <<<EODUMP
+RdKafka\KafkaConsumer {
+  -error_cb: null
+  -rebalance_cb: null
+  -dr_msg_cb: null
+  subscription: array:1 [
+    0 => "test-topic"
+  ]
+  assignment: []
+  orig_broker_id: %d
+  orig_broker_name: "$this->broker/%s"
+  brokers: RdKafka\Metadata\Collection {
+    +0: RdKafka\Metadata\Broker {
+      id: 1001
+      host: "%s"
+      port: %d
+    }
+  }
+  topics: RdKafka\Metadata\Collection {
+    +0: RdKafka\Metadata\Topic {
+      name: "%s"
+      partitions: RdKafka\Metadata\Collection {
+        +0: RdKafka\Metadata\Partition {
+          id: 0
+          err: 0
+          leader: 1001
+        }%A
+      }
+    }%A
+  }
+}
+EODUMP;
+
+        $this->assertDumpMatchesFormat($expectedDump, $consumer);
+    }
+
+    public function testDumpProducerTopic()
+    {
+        $producer = new Producer(new Conf());
+        $producer->addBrokers($this->broker);
+
+        $topic = $producer->newTopic('test');
+        $topic->produce(\RD_KAFKA_PARTITION_UA, 0, '{}');
+
+        $expectedDump = <<<EODUMP
+RdKafka\ProducerTopic {
+  name: "test"
+}
+EODUMP;
+
+        $this->assertDumpMatchesFormat($expectedDump, $topic);
+    }
+
+    public function testDumpMessage()
+    {
+        $conf = new Conf();
+        $conf->set('metadata.broker.list', $this->broker);
+        $conf->set('group.id', self::GROUP_ID);
+
+        $consumer = new KafkaConsumer($conf);
+        $consumer->subscribe([self::TOPIC]);
+
+        // Force timeout
+        $message = $consumer->consume(0);
+
+        $expectedDump = <<<EODUMP
+RdKafka\Message {
+  +err: -185
+  +topic_name: null
+  +timestamp: null
+  +partition: 0
+  +payload: null
+  +len: null
+  +key: null
+  +offset: 0%A
+  errstr: "Local: Timed out"
+}
+EODUMP;
+
+        $this->assertDumpMatchesFormat($expectedDump, $message);
+    }
+}