diff --git a/tests/integration/fixtures/scheduler_string_test.yaml b/tests/integration/fixtures/scheduler_string_test.yaml
new file mode 100644
index 0000000000..1c0e22ecec
--- /dev/null
+++ b/tests/integration/fixtures/scheduler_string_test.yaml
@@ -0,0 +1,156 @@
+esphome:
+  name: scheduler-string-test
+  on_boot:
+    priority: -100
+    then:
+      - logger.log: "Starting scheduler string tests"
+  platformio_options:
+    build_flags:
+      - "-DESPHOME_DEBUG_SCHEDULER"  # Enable scheduler debug logging
+
+host:
+api:
+logger:
+  level: VERBOSE
+
+globals:
+  - id: timeout_counter
+    type: int
+    initial_value: '0'
+  - id: interval_counter
+    type: int
+    initial_value: '0'
+  - id: dynamic_counter
+    type: int
+    initial_value: '0'
+  - id: static_tests_done
+    type: bool
+    initial_value: 'false'
+  - id: dynamic_tests_done
+    type: bool
+    initial_value: 'false'
+  - id: results_reported
+    type: bool
+    initial_value: 'false'
+
+script:
+  - id: test_static_strings
+    then:
+      - logger.log: "Testing static string timeouts and intervals"
+      - lambda: |-
+          auto *component1 = id(test_sensor1);
+          // Test 1: Static string literals with set_timeout
+          App.scheduler.set_timeout(component1, "static_timeout_1", 100, []() {
+            ESP_LOGI("test", "Static timeout 1 fired");
+            id(timeout_counter) += 1;
+          });
+
+          // Test 2: Static const char* with set_timeout
+          static const char* TIMEOUT_NAME = "static_timeout_2";
+          App.scheduler.set_timeout(component1, TIMEOUT_NAME, 200, []() {
+            ESP_LOGI("test", "Static timeout 2 fired");
+            id(timeout_counter) += 1;
+          });
+
+          // Test 3: Static string literal with set_interval
+          App.scheduler.set_interval(component1, "static_interval_1", 500, []() {
+            ESP_LOGI("test", "Static interval 1 fired, count: %d", id(interval_counter));
+            id(interval_counter) += 1;
+            if (id(interval_counter) >= 3) {
+              App.scheduler.cancel_interval(id(test_sensor1), "static_interval_1");
+              ESP_LOGI("test", "Cancelled static interval 1");
+            }
+          });
+
+          // Test 4: Empty string (should be handled safely)
+          App.scheduler.set_timeout(component1, "", 300, []() {
+            ESP_LOGI("test", "Empty string timeout fired");
+          });
+
+  - id: test_dynamic_strings
+    then:
+      - logger.log: "Testing dynamic string timeouts and intervals"
+      - lambda: |-
+          auto *component2 = id(test_sensor2);
+
+          // Test 5: Dynamic string with set_timeout (std::string)
+          std::string dynamic_name = "dynamic_timeout_" + std::to_string(id(dynamic_counter)++);
+          App.scheduler.set_timeout(component2, dynamic_name, 150, []() {
+            ESP_LOGI("test", "Dynamic timeout fired");
+            id(timeout_counter) += 1;
+          });
+
+          // Test 6: Dynamic string with set_interval
+          std::string interval_name = "dynamic_interval_" + std::to_string(id(dynamic_counter)++);
+          App.scheduler.set_interval(component2, interval_name, 600, [interval_name]() {
+            ESP_LOGI("test", "Dynamic interval fired: %s", interval_name.c_str());
+            id(interval_counter) += 1;
+            if (id(interval_counter) >= 6) {
+              App.scheduler.cancel_interval(id(test_sensor2), interval_name);
+              ESP_LOGI("test", "Cancelled dynamic interval");
+            }
+          });
+
+          // Test 7: Cancel with different string object but same content
+          std::string cancel_name = "cancel_test";
+          App.scheduler.set_timeout(component2, cancel_name, 5000, []() {
+            ESP_LOGI("test", "This should be cancelled");
+          });
+
+          // Cancel using a different string object
+          std::string cancel_name_2 = "cancel_test";
+          App.scheduler.cancel_timeout(component2, cancel_name_2);
+          ESP_LOGI("test", "Cancelled timeout using different string object");
+
+  - id: report_results
+    then:
+      - lambda: |-
+          ESP_LOGI("test", "Final results - Timeouts: %d, Intervals: %d",
+                   id(timeout_counter), id(interval_counter));
+
+sensor:
+  - platform: template
+    name: Test Sensor 1
+    id: test_sensor1
+    lambda: return 1.0;
+    update_interval: never
+
+  - platform: template
+    name: Test Sensor 2
+    id: test_sensor2
+    lambda: return 2.0;
+    update_interval: never
+
+interval:
+  # Run static string tests after boot - using script to run once
+  - interval: 0.5s
+    then:
+      - if:
+          condition:
+            lambda: 'return id(static_tests_done) == false;'
+          then:
+            - lambda: 'id(static_tests_done) = true;'
+            - script.execute: test_static_strings
+            - logger.log: "Started static string tests"
+
+  # Run dynamic string tests after static tests
+  - interval: 1s
+    then:
+      - if:
+          condition:
+            lambda: 'return id(static_tests_done) && !id(dynamic_tests_done);'
+          then:
+            - lambda: 'id(dynamic_tests_done) = true;'
+            - delay: 1s
+            - script.execute: test_dynamic_strings
+
+  # Report results after all tests
+  - interval: 1s
+    then:
+      - if:
+          condition:
+            lambda: 'return id(dynamic_tests_done) && !id(results_reported);'
+          then:
+            - lambda: 'id(results_reported) = true;'
+            - delay: 3s
+            - script.execute: report_results
diff --git a/tests/integration/test_scheduler_string_test.py b/tests/integration/test_scheduler_string_test.py
new file mode 100644
index 0000000000..54b78d697b
--- /dev/null
+++ b/tests/integration/test_scheduler_string_test.py
@@ -0,0 +1,163 @@
+"""Test scheduler string optimization with static and dynamic strings."""
+
+import asyncio
+import re
+
+import pytest
+
+from .types import APIClientConnectedFactory, RunCompiledFunction
+
+
+@pytest.mark.asyncio
+async def test_scheduler_string_test(
+    yaml_config: str,
+    run_compiled: RunCompiledFunction,
+    api_client_connected: APIClientConnectedFactory,
+) -> None:
+    """Test that scheduler handles both static and dynamic strings correctly."""
+    # Track counts
+    timeout_count = 0
+    interval_count = 0
+
+    # Events for each test completion
+    static_timeout_1_fired = asyncio.Event()
+    static_timeout_2_fired = asyncio.Event()
+    static_interval_fired = asyncio.Event()
+    static_interval_cancelled = asyncio.Event()
+    empty_string_timeout_fired = asyncio.Event()
+    dynamic_timeout_fired = asyncio.Event()
+    dynamic_interval_fired = asyncio.Event()
+    cancel_test_done = asyncio.Event()
+    final_results_logged = asyncio.Event()
+
+    # Track interval counts
+    static_interval_count = 0
+    dynamic_interval_count = 0
+
+    def on_log_line(line: str) -> None:
+        nonlocal \
+            timeout_count, \
+            interval_count, \
+            static_interval_count, \
+            dynamic_interval_count
+
+        # Strip ANSI color codes
+        clean_line = re.sub(r"\x1b\[[0-9;]*m", "", line)
+
+        # Check for static timeout completions
+        if "Static timeout 1 fired" in clean_line:
+            static_timeout_1_fired.set()
+            timeout_count += 1
+
+        elif "Static timeout 2 fired" in clean_line:
+            static_timeout_2_fired.set()
+            timeout_count += 1
+
+        # Check for static interval
+        elif "Static interval 1 fired" in clean_line:
+            match = re.search(r"count: (\d+)", clean_line)
+            if match:
+                static_interval_count = int(match.group(1))
+                static_interval_fired.set()
+
+        elif "Cancelled static interval 1" in clean_line:
+            static_interval_cancelled.set()
+
+        # Check for empty string timeout
+        elif "Empty string timeout fired" in clean_line:
+            empty_string_timeout_fired.set()
+
+        # Check for dynamic string tests
+        elif "Dynamic timeout fired" in clean_line:
+            dynamic_timeout_fired.set()
+            timeout_count += 1
+
+        elif "Dynamic interval fired" in clean_line:
+            dynamic_interval_count += 1
+            dynamic_interval_fired.set()
+
+        # Check for cancel test
+        elif "Cancelled timeout using different string object" in clean_line:
+            cancel_test_done.set()
+
+        # Check for final results
+        elif "Final results" in clean_line:
+            match = re.search(r"Timeouts: (\d+), Intervals: (\d+)", clean_line)
+            if match:
+                timeout_count = int(match.group(1))
+                interval_count = int(match.group(2))
+                final_results_logged.set()
+
+    async with (
+        run_compiled(yaml_config, line_callback=on_log_line),
+        api_client_connected() as client,
+    ):
+        # Verify we can connect
+        device_info = await client.device_info()
+        assert device_info is not None
+        assert device_info.name == "scheduler-string-test"
+
+        # Wait for static string tests
+        try:
+            await asyncio.wait_for(static_timeout_1_fired.wait(), timeout=3.0)
+        except asyncio.TimeoutError:
+            pytest.fail("Static timeout 1 did not fire within 3 seconds")
+
+        try:
+            await asyncio.wait_for(static_timeout_2_fired.wait(), timeout=3.0)
+        except asyncio.TimeoutError:
+            pytest.fail("Static timeout 2 did not fire within 3 seconds")
+
+        try:
+            await asyncio.wait_for(static_interval_fired.wait(), timeout=3.0)
+        except asyncio.TimeoutError:
+            pytest.fail("Static interval did not fire within 3 seconds")
+
+        try:
+            await asyncio.wait_for(static_interval_cancelled.wait(), timeout=3.0)
+        except asyncio.TimeoutError:
+            pytest.fail("Static interval was not cancelled within 3 seconds")
+
+        # Verify static interval ran at least 3 times
+        assert static_interval_count >= 2, (
+            f"Expected static interval to run at least 3 times, got {static_interval_count + 1}"
+        )
+
+        # Wait for dynamic string tests
+        try:
+            await asyncio.wait_for(dynamic_timeout_fired.wait(), timeout=5.0)
+        except asyncio.TimeoutError:
+            pytest.fail("Dynamic timeout did not fire within 5 seconds")
+
+        try:
+            await asyncio.wait_for(dynamic_interval_fired.wait(), timeout=5.0)
+        except asyncio.TimeoutError:
+            pytest.fail("Dynamic interval did not fire within 5 seconds")
+
+        # Wait for cancel test
+        try:
+            await asyncio.wait_for(cancel_test_done.wait(), timeout=5.0)
+        except asyncio.TimeoutError:
+            pytest.fail("Cancel test did not complete within 5 seconds")
+
+        # Wait for final results
+        try:
+            await asyncio.wait_for(final_results_logged.wait(), timeout=10.0)
+        except asyncio.TimeoutError:
+            pytest.fail("Final results were not logged within 10 seconds")
+
+        # Verify results
+        assert timeout_count >= 3, f"Expected at least 3 timeouts, got {timeout_count}"
+        assert interval_count >= 3, (
+            f"Expected at least 3 interval fires, got {interval_count}"
+        )
+
+        # Empty string timeout DOES fire (scheduler accepts empty names)
+        assert empty_string_timeout_fired.is_set(), "Empty string timeout should fire"
+
+        # Log final status
+        print("\nScheduler string test completed successfully:")
+        print(f"  Timeouts fired: {timeout_count}")
+        print(f"  Intervals fired: {interval_count}")
+        print(f"  Static interval count: {static_interval_count + 1}")
+        print(f"  Dynamic interval count: {dynamic_interval_count}")