diff --git a/__tests__/core/runner.test.ts b/__tests__/core/runner.test.ts
index 938ac430..30a76428 100644
--- a/__tests__/core/runner.test.ts
+++ b/__tests__/core/runner.test.ts
@@ -788,6 +788,7 @@ describe('runner', () => {
         alert: { tls: { enabled: true } },
         playwrightOptions: { ignoreHTTPSErrors: true },
         fields: { area: 'website' },
+        namespace: 'test',
       });
 
       const j1 = new Journey({ name: 'j1', tags: ['foo*'] }, noop);
@@ -824,6 +825,7 @@ describe('runner', () => {
         alert: { tls: { enabled: true } },
         retestOnFailure: true,
         fields: { area: 'website' },
+        namespace: 'test',
       });
       expect(monitors[1].config).toMatchObject({
         locations: ['us_east'],
diff --git a/__tests__/push/monitor.test.ts b/__tests__/push/monitor.test.ts
index e10ff463..ac356864 100644
--- a/__tests__/push/monitor.test.ts
+++ b/__tests__/push/monitor.test.ts
@@ -523,6 +523,34 @@ heartbeat.monitors:
         },
       });
     });
+
+    it('supports namespace in config', async () => {
+      await writeHBFile(`
+heartbeat.monitors:
+- type: icmp
+  schedule: @every 5m
+  id: "test-icmp"
+  name: "test-icmp"
+  namespace: "foo"
+      `);
+
+      const [mon] = await createLightweightMonitors(PROJECT_DIR, {
+        auth: 'foo',
+        kibanaVersion: '8.8.0',
+        locations: ['australia_east'],
+        schedule: 10,
+        namespace: 'foo',
+      });
+
+      expect(mon.config).toEqual({
+        id: 'test-icmp',
+        name: 'test-icmp',
+        locations: ['australia_east'],
+        type: 'icmp',
+        schedule: 5,
+        namespace: 'foo',
+      });
+    });
   });
 
   describe('parseAlertConfig', () => {
diff --git a/src/cli.ts b/src/cli.ts
index 8115b31d..1a05f0e6 100644
--- a/src/cli.ts
+++ b/src/cli.ts
@@ -68,6 +68,7 @@ const {
   tags,
   match,
   fields,
+  namespace,
 } = getCommonCommandOpts();
 
 program
@@ -197,6 +198,7 @@ program
   .addOption(pattern)
   .addOption(tags)
   .addOption(fields)
+  .addOption(namespace)
   .addOption(match)
   .addOption(params)
   .addOption(playwrightOpts)
diff --git a/src/common_types.ts b/src/common_types.ts
index 476ccb8e..00a7bca2 100644
--- a/src/common_types.ts
+++ b/src/common_types.ts
@@ -263,6 +263,7 @@ export type PushOptions = Partial<ProjectSettings> &
     retestOnFailure?: MonitorConfig['retestOnFailure'];
     enabled?: boolean;
     grepOpts?: GrepOptions;
+    namespace?: string;
   };
 
 export type ProjectSettings = {
diff --git a/src/core/runner.ts b/src/core/runner.ts
index a1b6b486..24d037c9 100644
--- a/src/core/runner.ts
+++ b/src/core/runner.ts
@@ -443,6 +443,7 @@ export default class Runner implements RunnerInfo {
       retestOnFailure: options.retestOnFailure,
       enabled: options.enabled,
       fields: options.fields,
+      namespace: options.namespace,
     });
 
     const monitors: Monitor[] = [];
diff --git a/src/dsl/monitor.ts b/src/dsl/monitor.ts
index 87d56289..c29bf191 100644
--- a/src/dsl/monitor.ts
+++ b/src/dsl/monitor.ts
@@ -77,6 +77,7 @@ export type MonitorConfig = {
    * By default, the monitor will be retested on failure
    */
   retestOnFailure?: boolean;
+  namespace?: string;
 };
 
 type MonitorFilter = {
diff --git a/src/options.ts b/src/options.ts
index 355b5491..59902a9f 100644
--- a/src/options.ts
+++ b/src/options.ts
@@ -236,6 +236,10 @@ export function getCommonCommandOpts() {
     '--match <name>',
     'run/push tests with a name or tags that matches a pattern'
   );
+  const namespace = createOption(
+    '--namespace <name>',
+    'Kibana namespace to use for the monitor. Defaults to the spaceId of the current project.'
+  );
   const fields = createOption(
     '--fields <jsonstring>',
     'add fields to the monitor(s) in the format { "key": "value"}'
@@ -265,6 +269,7 @@ export function getCommonCommandOpts() {
     tags,
     match,
     fields,
+    namespace,
   };
 }
 
diff --git a/src/push/monitor.ts b/src/push/monitor.ts
index a9c1c497..a9143038 100644
--- a/src/push/monitor.ts
+++ b/src/push/monitor.ts
@@ -288,6 +288,7 @@ export function buildMonitorFromYaml(
   const alertConfig = parseAlertConfig(config, options.alert);
 
   const mon = new Monitor({
+    namespace: config.namespace ?? options.namespace,
     enabled: config.enabled ?? options.enabled,
     locations: options.locations,
     tags: options.tags,