diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4e85235b4e1..f5202b69244 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -138,6 +138,7 @@ New deprecation(s):
 - **AWS Secret Manager**: Pod identity overrides are honored ([#6195](https://github.com/kedacore/keda/issues/6195))
 - **AWS SQS Scaler**: Improve error handling for SQS queue metrics ([#6178](https://github.com/kedacore/keda/issues/6178))
 - **Azure Event Hub Scaler**: Checkpointer errors are correctly handled ([#6084](https://github.com/kedacore/keda/issues/6084))
+- **JetStream**: NATS API uses account ID and not account name to filter by account ([#6415](https://github.com/kedacore/keda/pull/6415))
 - **Metrics API Scaler**: Prometheus metrics can have multiple labels ([#6077](https://github.com/kedacore/keda/issues/6077))
 
 ### Deprecations
diff --git a/pkg/scalers/nats_jetstream_scaler.go b/pkg/scalers/nats_jetstream_scaler.go
index 47a0bbe1f36..33b8b7b08be 100644
--- a/pkg/scalers/nats_jetstream_scaler.go
+++ b/pkg/scalers/nats_jetstream_scaler.go
@@ -64,6 +64,7 @@ type jetStreamCluster struct {
 }
 
 type accountDetail struct {
+	ID      string          `json:"id"`
 	Name    string          `json:"name"`
 	Streams []*streamDetail `json:"stream_detail"`
 }
@@ -278,7 +279,7 @@ func (s *natsJetStreamScaler) getNATSJetstreamMonitoringData(ctx context.Context
 			}
 
 			for _, jetStreamAccount := range jetStreamAccountResp.Accounts {
-				if jetStreamAccount.Name == s.metadata.account {
+				if jetStreamAccount.ID == s.metadata.account {
 					for _, stream := range jetStreamAccount.Streams {
 						if stream.Name == s.metadata.stream {
 							for _, consumer := range stream.Consumers {
@@ -305,7 +306,7 @@ func (s *natsJetStreamScaler) setNATSJetStreamMonitoringData(jetStreamAccountRes
 
 	// find and assign the stream that we are looking for.
 	for _, jsAccount := range jetStreamAccountResp.Accounts {
-		if jsAccount.Name == s.metadata.account {
+		if jsAccount.ID == s.metadata.account {
 			for _, stream := range jsAccount.Streams {
 				if stream.Name == s.metadata.stream {
 					s.stream = stream
diff --git a/pkg/scalers/nats_jetstream_scaler_test.go b/pkg/scalers/nats_jetstream_scaler_test.go
index c77811011f7..8c35c4ad0c0 100644
--- a/pkg/scalers/nats_jetstream_scaler_test.go
+++ b/pkg/scalers/nats_jetstream_scaler_test.go
@@ -131,7 +131,7 @@ var testNATSJetStreamMockResponses = []parseNATSJetStreamMockResponsesTestData{
 			0, "s0-nats-jetstream-mystream",
 		},
 		&jetStreamEndpointResponse{
-			Accounts: []accountDetail{{Name: "$G",
+			Accounts: []accountDetail{{Name: "$G", ID: "$G",
 				Streams: []*streamDetail{{Name: "mystream",
 					Consumers: []consumerDetail{{Name: "pull_consumer"}},
 				}},
@@ -145,7 +145,7 @@ var testNATSJetStreamMockResponses = []parseNATSJetStreamMockResponsesTestData{
 			0, "s0-nats-jetstream-mystream",
 		},
 		&jetStreamEndpointResponse{
-			Accounts: []accountDetail{{Name: "$G",
+			Accounts: []accountDetail{{Name: "$G", ID: "$G",
 				Streams: []*streamDetail{{Name: "mystream",
 					Consumers: []consumerDetail{{Name: "pull_consumer", NumPending: 100}},
 				}},
@@ -159,7 +159,7 @@ var testNATSJetStreamMockResponses = []parseNATSJetStreamMockResponsesTestData{
 			0, "s0-nats-jetstream-mystream",
 		},
 		&jetStreamEndpointResponse{
-			Accounts: []accountDetail{{Name: "$G",
+			Accounts: []accountDetail{{Name: "$G", ID: "$G",
 				Streams: []*streamDetail{{Name: "mystream", State: streamState{LastSequence: 1},
 					Consumers: []consumerDetail{{Name: "pull_consumer_bad", NumPending: 100}},
 				}},
@@ -173,7 +173,7 @@ var testNATSJetStreamMockResponses = []parseNATSJetStreamMockResponsesTestData{
 			0, "s0-nats-jetstream-mystream",
 		},
 		&jetStreamEndpointResponse{
-			Accounts: []accountDetail{{Name: "$G",
+			Accounts: []accountDetail{{Name: "$G", ID: "$G",
 				Streams: []*streamDetail{{Name: "mystreamBad", State: streamState{LastSequence: 1},
 					Consumers: []consumerDetail{{Name: "pull_consumer", NumPending: 100}},
 				}},
@@ -187,7 +187,7 @@ var testNATSJetStreamMockResponses = []parseNATSJetStreamMockResponsesTestData{
 			0, "s0-nats-jetstream-mystream",
 		},
 		&jetStreamEndpointResponse{
-			Accounts: []accountDetail{{Name: "$G",
+			Accounts: []accountDetail{{Name: "$G", ID: "$G",
 				Streams: []*streamDetail{{Name: "mystream",
 					Consumers: []consumerDetail{{Name: "pull_consumer", NumPending: 100}},
 				}},
@@ -202,7 +202,7 @@ var testNATSJetStreamMockResponses = []parseNATSJetStreamMockResponsesTestData{
 		},
 		&jetStreamEndpointResponse{
 			MetaCluster: metaCluster{ClusterSize: 3},
-			Accounts: []accountDetail{{Name: "$G",
+			Accounts: []accountDetail{{Name: "$G", ID: "$G",
 				Streams: []*streamDetail{{Name: "mystream",
 					Consumers: []consumerDetail{{Name: "pull_consumer", NumPending: 100, Cluster: consumerCluster{Leader: "leader"}}},
 				}},
@@ -217,7 +217,7 @@ var testNATSJetStreamMockResponses = []parseNATSJetStreamMockResponsesTestData{
 		},
 		&jetStreamEndpointResponse{
 			MetaCluster: metaCluster{ClusterSize: 3},
-			Accounts: []accountDetail{{Name: "$G",
+			Accounts: []accountDetail{{Name: "$G", ID: "$G",
 				Streams: []*streamDetail{{Name: "mystream"}},
 			}},
 		}, false, true},