diff --git a/relationships/candidates/AWSREDSHIFTCLUSTER.yml b/relationships/candidates/AWSREDSHIFTCLUSTER.yml
new file mode 100644
index 000000000..465bb09a2
--- /dev/null
+++ b/relationships/candidates/AWSREDSHIFTCLUSTER.yml
@@ -0,0 +1,16 @@
+category: AWSREDSHIFTCLUSTER
+lookups:
+  - entityTypes:
+      - domain: INFRA
+        type: AWSREDSHIFTCLUSTER
+    tags:
+      matchingMode: ALL
+      predicates:
+        - tagKeys: ["configuration.endpoint.address"]
+          field: cloudEndpointAddress
+    onMatch:
+      onMultipleMatches: RELATE_ALL
+    onMiss:
+      action: CREATE_UNINSTRUMENTED
+      uninstrumented:
+        type: AWSREDSHIFTCLUSTER
\ No newline at end of file
diff --git a/relationships/synthesis/EXT-SERVICE-to-INFRA-REDSHIFTCLUSTER.yml b/relationships/synthesis/EXT-SERVICE-to-INFRA-REDSHIFTCLUSTER.yml
new file mode 100644
index 000000000..6af42cdd1
--- /dev/null
+++ b/relationships/synthesis/EXT-SERVICE-to-INFRA-REDSHIFTCLUSTER.yml
@@ -0,0 +1,24 @@
+relationships:
+  - name: extServiceCallsInfraRedshiftCluster
+    version: "1"
+    origins:
+      - Distributed Tracing
+    conditions:
+      - attribute: eventType
+        anyOf: [ "Span" ]
+      - attribute: instrumentation.provider
+        anyOf: [ "opentelemetry" ]
+      - attribute: rpc.service
+        anyOf: [ "Redshift" ]
+    relationship:
+      expires: P75M
+      relationshipType: CALLS
+      source:
+        extractGuid:
+          attribute: entity.guid
+      target:
+        lookupGuid:
+          candidateCategory: AWSREDSHIFTCLUSTER
+          fields:
+            - field: cloudEndpointAddress
+              attribute: configuration.endpoint.address
\ No newline at end of file