diff --git a/dd-java-agent/instrumentation/spark/spark-common/src/main/java/datadog/trace/instrumentation/spark/AbstractDatadogSparkListener.java b/dd-java-agent/instrumentation/spark/spark-common/src/main/java/datadog/trace/instrumentation/spark/AbstractDatadogSparkListener.java
index 33299fb944d..2f033394a53 100644
--- a/dd-java-agent/instrumentation/spark/spark-common/src/main/java/datadog/trace/instrumentation/spark/AbstractDatadogSparkListener.java
+++ b/dd-java-agent/instrumentation/spark/spark-common/src/main/java/datadog/trace/instrumentation/spark/AbstractDatadogSparkListener.java
@@ -191,8 +191,7 @@ public void setupOpenLineage(DDTraceId traceId) {
       openLineageSparkConf.set(
           "spark.openlineage.transport.transports.agent.endpoint", AGENT_OL_ENDPOINT);
       openLineageSparkConf.set("spark.openlineage.transport.transports.agent.compression", "gzip");
-      openLineageSparkConf.set(
-          "spark.openlineage.run.tags",
+      String runTags =
           "_dd.trace_id:"
               + traceId.toString()
               + ";_dd.ol_intake.emit_spans:false;_dd.ol_service:"
@@ -200,7 +199,17 @@ public void setupOpenLineage(DDTraceId traceId) {
               + ";_dd.ol_intake.process_tags:"
               + ProcessTags.getTagsForSerialization()
               + ";_dd.ol_app_id:"
-              + appId);
+              + appId;
+      // _dd.ol_env carries the run environment so the lineage-processor can use it
+      // as the Spark application's UGP namespace, letting the OpenLineage-created
+      // node and the tracer-only node (djm-span-processor) resolve to the same
+      // entity_id. Omitted when env is unset so the consumer falls back to the
+      // OpenLineage namespace.
+      String olEnv = Config.get().getEnv();
+      if (!olEnv.isEmpty()) {
+        runTags += ";_dd.ol_env:" + olEnv;
+      }
+      openLineageSparkConf.set("spark.openlineage.run.tags", runTags);
       setupOpenLineageCircuitBreaker();
       return;
     }
diff --git a/dd-java-agent/instrumentation/spark/spark-common/src/testFixtures/groovy/datadog/trace/instrumentation/spark/AbstractSparkListenerTest.groovy b/dd-java-agent/instrumentation/spark/spark-common/src/testFixtures/groovy/datadog/trace/instrumentation/spark/AbstractSparkListenerTest.groovy
index a5ebb71915d..fa4ef5f699a 100644
--- a/dd-java-agent/instrumentation/spark/spark-common/src/testFixtures/groovy/datadog/trace/instrumentation/spark/AbstractSparkListenerTest.groovy
+++ b/dd-java-agent/instrumentation/spark/spark-common/src/testFixtures/groovy/datadog/trace/instrumentation/spark/AbstractSparkListenerTest.groovy
@@ -642,6 +642,22 @@ abstract class AbstractSparkListenerTest extends InstrumentationSpecification {
     .contains("_dd.ol_service:databricks.job-cluster.some-run-name")
   }
 
+  def "test setupOpenLineage sets ol_env from dd.env"() {
+    setup:
+    injectSysConfig("dd.env", "my-env")
+    def listener = getTestDatadogSparkListener()
+    listener.openLineageSparkListener = Mock(SparkListenerInterface)
+    listener.openLineageSparkConf = new SparkConf()
+    listener.setupOpenLineage(Mock(DDTraceId))
+
+    expect:
+    assert listener
+    .openLineageSparkConf
+    .get("spark.openlineage.run.tags")
+    .split(";")
+    .contains("_dd.ol_env:my-env")
+  }
+
   def "test setupOpenLineage fills ProcessTags"() {
     setup:
     def listener = getTestDatadogSparkListener()