diff --git a/CLAUDE.md b/CLAUDE.md
index 51f3ae2..88a67ba 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -162,7 +162,7 @@ background process on port 8080.
 | `workflow start --sync` | Start and wait for completion | None | `--workflow`, `--input`, `--file`, `--wait-until` | `conductor workflow start --workflow my_workflow --sync` |
 | `workflow status <id>` | Get execution status | workflow ID | | `conductor workflow status abc-123` |
 | `workflow get-execution <id>` | Get full execution details | workflow ID | `--complete` | `conductor workflow get-execution abc-123` |
-| `workflow search` | Search executions | None | `--workflow`, `--status`, `--count`, `--start-time-after`, `--start-time-before`, `--json` | `conductor workflow search --workflow my_workflow --status FAILED` |
+| `workflow search` | Search executions | None | `--workflow`, `--status`, `--correlation-id`, `--count`, `--start-time-after`, `--start-time-before`, `--json` | `conductor workflow search --workflow my_workflow --status FAILED` |
 | `workflow terminate <id>` | Terminate execution | workflow ID | | `conductor workflow terminate abc-123` |
 | `workflow pause <id>` | Pause execution | workflow ID | | `conductor workflow pause abc-123` |
 | `workflow resume <id>` | Resume paused execution | workflow ID | | `conductor workflow resume abc-123` |
@@ -713,9 +713,14 @@ conductor workflow search --workflow my_workflow \
   --start-time-after "2025-01-01" \
   --start-time-before "2025-01-31"
 
+# Find every execution tagged with a correlation ID at start time
+conductor workflow start --workflow my_workflow --correlation "order-12345"
+conductor workflow search --correlation-id "order-12345"
+
 # Combine filters
 conductor workflow search --workflow my_workflow \
   --status RUNNING \
+  --correlation-id "order-12345" \
   --start-time-after "2025-01-01 10:00:00" \
   --count 100
 ```
@@ -723,6 +728,7 @@ conductor workflow search --workflow my_workflow \
 **Search flags:**
 - `--workflow <name>` - Filter by workflow name
 - `--status <status>` - Filter by status (COMPLETED, FAILED, RUNNING, PAUSED, TERMINATED, TIMED_OUT)
+- `--correlation-id <id>` - Filter by correlation ID, the value given to `workflow start --correlation`. Matched exactly; quote ids containing spaces.
 - `--count <n>` - Number of results (max 1000, default 10)
 - `--start-time-after <time>` - Started after time (formats: YYYY-MM-DD HH:MM:SS, YYYY-MM-DD, or epoch milliseconds)
 - `--start-time-before <time>` - Started before time (same formats)
diff --git a/README.md b/README.md
index ec29966..201ac23 100644
--- a/README.md
+++ b/README.md
@@ -296,6 +296,7 @@ conductor workflow <command> [arguments] [flags]
 **Workflow Search Options:**
 - `-w, --workflow` - Filter by workflow name
 - `-s, --status` - Filter by status: `COMPLETED`, `FAILED`, `PAUSED`, `RUNNING`, `TERMINATED`, `TIMED_OUT`
+- `--correlation-id` - Filter by correlation ID (the value passed to `start --correlation`)
 - `-c, --count` - Number of results (default: 10, max: 1000)
 - `--start-time-after` - Filter by start time (format: `YYYY-MM-DD HH:MM:SS`, `YYYY-MM-DD`, or epoch ms)
 - `--start-time-before` - Filter by start time
diff --git a/cmd/execution_test.go b/cmd/execution_test.go
index 37e0526..b63b793 100644
--- a/cmd/execution_test.go
+++ b/cmd/execution_test.go
@@ -15,6 +15,7 @@
 package cmd
 
 import (
+	"strconv"
 	"testing"
 	"time"
 )
@@ -178,4 +179,71 @@ func TestParseTimeToEpochMillis_EdgeCases(t *testing.T) {
 			t.Errorf("expected 9223372036854775807, got %d", result)
 		}
 	})
-}
\ No newline at end of file
+}
+func TestBuildWorkflowSearchQuery(t *testing.T) {
+	startTime := "2023-12-25 15:30:45"
+	startTimeMs := strconv.FormatInt(time.Date(2023, 12, 25, 15, 30, 45, 0, time.UTC).Unix()*1000, 10)
+
+	tests := []struct {
+		name            string
+		workflowName    string
+		status          string
+		correlationId   string
+		startTimeAfter  string
+		startTimeBefore string
+		expected        string
+		expectError     bool
+	}{
+		{
+			name:     "no filters",
+			expected: "",
+		},
+		{
+			name:          "correlation id only",
+			correlationId: "order-123",
+			expected:      `correlationId = "order-123"`,
+		},
+		{
+			name:          "correlation id with spaces stays one term",
+			correlationId: "order 123",
+			expected:      `correlationId = "order 123"`,
+		},
+		{
+			name:          "correlation id combined with other filters",
+			workflowName:  "my_workflow",
+			status:        "COMPLETED",
+			correlationId: "order-123",
+			expected:      `workflowType IN (my_workflow) AND status IN (COMPLETED) AND correlationId = "order-123"`,
+		},
+		{
+			name:            "correlation id combined with time range",
+			correlationId:   "order-123",
+			startTimeAfter:  startTime,
+			startTimeBefore: startTime,
+			expected:        `correlationId = "order-123" AND startTime>` + startTimeMs + ` AND startTime<` + startTimeMs,
+		},
+		{
+			name:           "invalid start-time-after",
+			startTimeAfter: "not-a-time",
+			expectError:    true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			query, err := buildWorkflowSearchQuery(tt.workflowName, tt.status, tt.correlationId, tt.startTimeAfter, tt.startTimeBefore)
+			if tt.expectError {
+				if err == nil {
+					t.Errorf("expected an error, got query %q", query)
+				}
+				return
+			}
+			if err != nil {
+				t.Errorf("unexpected error: %v", err)
+			}
+			if query != tt.expected {
+				t.Errorf("expected %q, got %q", tt.expected, query)
+			}
+		})
+	}
+}
diff --git a/cmd/workflow.go b/cmd/workflow.go
index face2ac..d282b88 100644
--- a/cmd/workflow.go
+++ b/cmd/workflow.go
@@ -816,59 +816,75 @@ func debugSearchWorkflows(freeText, query string, count int32) error {
 	return nil
 }
 
-func searchWorkflowExecutions(cmd *cobra.Command, args []string) error {
-	debug, _ := cmd.Flags().GetBool("debug")
-
-	freeText := "*"
-	if len(args) == 1 {
-		freeText = args[0]
-	}
-
-	count, _ := cmd.Flags().GetInt32("count")
-	if count > 1000 {
-		//fmt.Println("count exceeds max allowed 1000.  Will only show the first 1000 matching results")
-		//count = 1000
-	} else if count == 0 {
-		count = 10
-	}
-
-	// Build query dynamically with AND conditions
+// buildWorkflowSearchQuery combines the search filters into a single query
+// expression. Values that can contain spaces are quoted so the server-side
+// query parser keeps them as one term.
+func buildWorkflowSearchQuery(workflowName, status, correlationId, startTimeAfter, startTimeBefore string) (string, error) {
 	var queryParts []string
 
 	// Workflow name filter
-	workflowName, _ := cmd.Flags().GetString("workflow")
 	if workflowName != "" {
 		queryParts = append(queryParts, "workflowType IN ("+workflowName+")")
 	}
 
 	// Status filter
-	status, _ := cmd.Flags().GetString("status")
 	if status != "" {
 		queryParts = append(queryParts, "status IN ("+status+")")
 	}
 
+	// Correlation ID filter
+	if correlationId != "" {
+		queryParts = append(queryParts, "correlationId = \""+correlationId+"\"")
+	}
+
 	// Start time filter (after)
-	startTimeAfter, _ := cmd.Flags().GetString("start-time-after")
 	if startTimeAfter != "" {
 		startTimeAfterMs, err := parseTimeToEpochMillis(startTimeAfter)
 		if err != nil {
-			return fmt.Errorf("invalid start-time-after: %v", err)
+			return "", fmt.Errorf("invalid start-time-after: %v", err)
 		}
 		queryParts = append(queryParts, "startTime>"+strconv.FormatInt(startTimeAfterMs, 10))
 	}
 
 	// Start time filter (before)
-	startTimeBefore, _ := cmd.Flags().GetString("start-time-before")
 	if startTimeBefore != "" {
 		startTimeBeforeMs, err := parseTimeToEpochMillis(startTimeBefore)
 		if err != nil {
-			return fmt.Errorf("invalid start-time-before: %v", err)
+			return "", fmt.Errorf("invalid start-time-before: %v", err)
 		}
 		queryParts = append(queryParts, "startTime<"+strconv.FormatInt(startTimeBeforeMs, 10))
 	}
 
 	// Combine all query parts with AND
-	query := strings.Join(queryParts, " AND ")
+	return strings.Join(queryParts, " AND "), nil
+}
+
+func searchWorkflowExecutions(cmd *cobra.Command, args []string) error {
+	debug, _ := cmd.Flags().GetBool("debug")
+
+	freeText := "*"
+	if len(args) == 1 {
+		freeText = args[0]
+	}
+
+	count, _ := cmd.Flags().GetInt32("count")
+	if count > 1000 {
+		//fmt.Println("count exceeds max allowed 1000.  Will only show the first 1000 matching results")
+		//count = 1000
+	} else if count == 0 {
+		count = 10
+	}
+
+	workflowName, _ := cmd.Flags().GetString("workflow")
+	status, _ := cmd.Flags().GetString("status")
+	correlationId, _ := cmd.Flags().GetString("correlation-id")
+	startTimeAfter, _ := cmd.Flags().GetString("start-time-after")
+	startTimeBefore, _ := cmd.Flags().GetString("start-time-before")
+
+	query, err := buildWorkflowSearchQuery(workflowName, status, correlationId, startTimeAfter, startTimeBefore)
+	if err != nil {
+		return err
+	}
 
 	// Debug mode: make raw HTTP request to see server response
 	if debug {
@@ -1455,6 +1471,7 @@ func init() {
 	searchExecutionCmd.Flags().Int32P("count", "c", 10, "No of workflow executions to return (max 1000)")
 	searchExecutionCmd.Flags().StringP("status", "s", "", "Filter by status one of (COMPLETED, FAILED, PAUSED, RUNNING, TERMINATED, TIMED_OUT)")
 	searchExecutionCmd.Flags().StringP("workflow", "w", "", "Workflow name")
+	searchExecutionCmd.Flags().String("correlation-id", "", "Filter by correlation ID (set with 'workflow start --correlation')")
 	searchExecutionCmd.Flags().String("start-time-after", "", "Filter executions started after this time (YYYY-MM-DD HH:MM:SS, YYYY-MM-DD, or epoch ms)")
 	searchExecutionCmd.Flags().String("start-time-before", "", "Filter executions started before this time (YYYY-MM-DD HH:MM:SS, YYYY-MM-DD, or epoch ms)")
 	searchExecutionCmd.Flags().Bool("json", false, "Output as JSON")
diff --git a/test/e2e/search.bats b/test/e2e/search.bats
index 2d39f8c..dd0544d 100644
--- a/test/e2e/search.bats
+++ b/test/e2e/search.bats
@@ -7,6 +7,7 @@
 
 WORKFLOW_NAME="cli_e2e_test_workflow_2"
 WORKFLOW_FILE="test/e2e/test-workflow-2.json"
+CORRELATION_ID="cli e2e search correlation"
 
 setup() {
     if [ ! -f "./conductor" ]; then
@@ -31,7 +32,7 @@ get_workflow_id() {
 }
 
 @test "2. Start workflow execution" {
-    run bash -c "./conductor workflow start --workflow '$WORKFLOW_NAME' 2>/dev/null"
+    run bash -c "./conductor workflow start --workflow '$WORKFLOW_NAME' --correlation '$CORRELATION_ID' 2>/dev/null"
     echo "Output: $output"
     [ "$status" -eq 0 ]
 
@@ -113,7 +114,38 @@ get_workflow_id() {
     echo "$output" | grep -q "$WORKFLOW_NAME"
 }
 
-@test "10. Search for non-existent workflow returns no results" {
+@test "10. Search by correlation ID" {
+    WORKFLOW_ID=$(cat /tmp/search_workflow_id.txt)
+    [ -n "$WORKFLOW_ID" ]
+
+    run bash -c "./conductor workflow search --correlation-id '$CORRELATION_ID' 2>/dev/null"
+    echo "Output: $output"
+    [ "$status" -eq 0 ]
+    echo "$output" | grep -q "$WORKFLOW_ID"
+}
+
+@test "11. Search by correlation ID combined with other filters" {
+    WORKFLOW_ID=$(cat /tmp/search_workflow_id.txt)
+    [ -n "$WORKFLOW_ID" ]
+
+    run bash -c "./conductor workflow search --workflow '$WORKFLOW_NAME' --correlation-id '$CORRELATION_ID' --status COMPLETED 2>/dev/null"
+    echo "Output: $output"
+    [ "$status" -eq 0 ]
+    echo "$output" | grep -q "$WORKFLOW_ID"
+}
+
+@test "12. Search by unknown correlation ID returns no results" {
+    WORKFLOW_ID=$(cat /tmp/search_workflow_id.txt)
+    [ -n "$WORKFLOW_ID" ]
+
+    run bash -c "./conductor workflow search --correlation-id 'nonexistent_correlation_xyz_12345' 2>/dev/null"
+    echo "Output: $output"
+    [ "$status" -eq 0 ]
+    RESULT_COUNT=$(echo "$output" | grep -c "$WORKFLOW_ID" || true)
+    [ "$RESULT_COUNT" -eq 0 ]
+}
+
+@test "13. Search for non-existent workflow returns no results" {
     run bash -c "./conductor workflow search --workflow 'nonexistent_workflow_xyz_12345' 2>/dev/null"
     echo "Output: $output"
     [ "$status" -eq 0 ]
@@ -123,7 +155,7 @@ get_workflow_id() {
     [ "$RESULT_COUNT" -eq 0 ]
 }
 
-@test "11. Search by status RUNNING returns no matches for completed workflow" {
+@test "14. Search by status RUNNING returns no matches for completed workflow" {
     run bash -c "./conductor workflow search --workflow '$WORKFLOW_NAME' --status RUNNING --count 1 2>/dev/null"
     echo "Output: $output"
     [ "$status" -eq 0 ]
@@ -135,7 +167,7 @@ get_workflow_id() {
 # Cleanup
 # ==========================================
 
-@test "12. Cleanup - Delete workflow execution" {
+@test "15. Cleanup - Delete workflow execution" {
     WORKFLOW_ID=$(cat /tmp/search_workflow_id.txt)
     [ -n "$WORKFLOW_ID" ]
 
@@ -145,7 +177,7 @@ get_workflow_id() {
     [[ "$output" == *"deleted successfully"* ]]
 }
 
-@test "13. Cleanup - Delete workflow definition" {
+@test "16. Cleanup - Delete workflow definition" {
     run bash -c "./conductor workflow delete '$WORKFLOW_NAME' 1 -y 2>/dev/null"
     echo "Output: $output"
     [ "$status" -eq 0 ]