diff --git a/packages/effect/src/logger.ts b/packages/effect/src/logger.ts
index 654edb639662..f0a55b3bf20e 100644
--- a/packages/effect/src/logger.ts
+++ b/packages/effect/src/logger.ts
@@ -1,7 +1,11 @@
-import { isObjectLike, logger as sentryLogger } from '@sentry/core';
+import { isObjectLike, logger as sentryLogger, SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN } from '@sentry/core';
 import * as Logger from 'effect/Logger';
 import type * as LogLevel from 'effect/LogLevel';
 
+const LOG_ATTRIBUTES = {
+  [SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN]: 'auto.log.effect',
+};
+
 function getLogLevelTag(logLevel: LogLevel.LogLevel): LogLevel.LogLevel | 'Warning' {
   // Effect v4: logLevel is a string literal directly
   if (typeof logLevel === 'string') {
@@ -34,23 +38,23 @@ export const SentryEffectLogger = Logger.make(({ logLevel, message }) => {
 
   switch (tag) {
     case 'Fatal':
-      sentryLogger.fatal(msg);
+      sentryLogger.fatal(msg, LOG_ATTRIBUTES);
       break;
     case 'Error':
-      sentryLogger.error(msg);
+      sentryLogger.error(msg, LOG_ATTRIBUTES);
       break;
     case 'Warning': // Effect v3
     case 'Warn': // Effect v4
-      sentryLogger.warn(msg);
+      sentryLogger.warn(msg, LOG_ATTRIBUTES);
       break;
     case 'Info':
-      sentryLogger.info(msg);
+      sentryLogger.info(msg, LOG_ATTRIBUTES);
       break;
     case 'Debug':
-      sentryLogger.debug(msg);
+      sentryLogger.debug(msg, LOG_ATTRIBUTES);
       break;
     case 'Trace':
-      sentryLogger.trace(msg);
+      sentryLogger.trace(msg, LOG_ATTRIBUTES);
       break;
     case 'All':
     case 'None':
diff --git a/packages/effect/test/logger.test.ts b/packages/effect/test/logger.test.ts
index 5069514fc2c7..9b17311d195f 100644
--- a/packages/effect/test/logger.test.ts
+++ b/packages/effect/test/logger.test.ts
@@ -21,6 +21,8 @@ vi.mock('@sentry/core', async importOriginal => {
   };
 });
 
+const LOG_ATTRIBUTES = { 'sentry.origin': 'auto.log.effect' };
+
 describe('SentryEffectLogger', () => {
   afterEach(() => {
     vi.clearAllMocks();
@@ -34,49 +36,49 @@ describe('SentryEffectLogger', () => {
   it.effect('forwards fatal logs to Sentry', () =>
     Effect.gen(function* () {
       yield* Effect.logFatal('This is a fatal message');
-      expect(sentryCore.logger.fatal).toHaveBeenCalledWith('This is a fatal message');
+      expect(sentryCore.logger.fatal).toHaveBeenCalledWith('This is a fatal message', LOG_ATTRIBUTES);
     }).pipe(Effect.provide(loggerLayer)),
   );
 
   it.effect('forwards error logs to Sentry', () =>
     Effect.gen(function* () {
       yield* Effect.logError('This is an error message');
-      expect(sentryCore.logger.error).toHaveBeenCalledWith('This is an error message');
+      expect(sentryCore.logger.error).toHaveBeenCalledWith('This is an error message', LOG_ATTRIBUTES);
     }).pipe(Effect.provide(loggerLayer)),
   );
 
   it.effect('forwards warning logs to Sentry', () =>
     Effect.gen(function* () {
       yield* Effect.logWarning('This is a warning message');
-      expect(sentryCore.logger.warn).toHaveBeenCalledWith('This is a warning message');
+      expect(sentryCore.logger.warn).toHaveBeenCalledWith('This is a warning message', LOG_ATTRIBUTES);
     }).pipe(Effect.provide(loggerLayer)),
   );
 
   it.effect('forwards info logs to Sentry', () =>
     Effect.gen(function* () {
       yield* Effect.logInfo('This is an info message');
-      expect(sentryCore.logger.info).toHaveBeenCalledWith('This is an info message');
+      expect(sentryCore.logger.info).toHaveBeenCalledWith('This is an info message', LOG_ATTRIBUTES);
     }).pipe(Effect.provide(loggerLayer)),
   );
 
   it.effect('forwards debug logs to Sentry', () =>
     Effect.gen(function* () {
       yield* Effect.logDebug('This is a debug message');
-      expect(sentryCore.logger.debug).toHaveBeenCalledWith('This is a debug message');
+      expect(sentryCore.logger.debug).toHaveBeenCalledWith('This is a debug message', LOG_ATTRIBUTES);
     }).pipe(withAllLogLevels, Effect.provide(loggerLayer)),
   );
 
   it.effect('forwards trace logs to Sentry', () =>
     Effect.gen(function* () {
       yield* Effect.logTrace('This is a trace message');
-      expect(sentryCore.logger.trace).toHaveBeenCalledWith('This is a trace message');
+      expect(sentryCore.logger.trace).toHaveBeenCalledWith('This is a trace message', LOG_ATTRIBUTES);
     }).pipe(withAllLogLevels, Effect.provide(loggerLayer)),
   );
 
   it.effect('handles object messages by stringifying', () =>
     Effect.gen(function* () {
       yield* Effect.logInfo({ key: 'value', nested: { foo: 'bar' } });
-      expect(sentryCore.logger.info).toHaveBeenCalledWith('{"key":"value","nested":{"foo":"bar"}}');
+      expect(sentryCore.logger.info).toHaveBeenCalledWith('{"key":"value","nested":{"foo":"bar"}}', LOG_ATTRIBUTES);
     }).pipe(Effect.provide(loggerLayer)),
   );
 
@@ -86,9 +88,9 @@ describe('SentryEffectLogger', () => {
       yield* Effect.logInfo('Second message');
       yield* Effect.logWarning('Third message');
       expect(sentryCore.logger.info).toHaveBeenCalledTimes(2);
-      expect(sentryCore.logger.info).toHaveBeenNthCalledWith(1, 'First message');
-      expect(sentryCore.logger.info).toHaveBeenNthCalledWith(2, 'Second message');
-      expect(sentryCore.logger.warn).toHaveBeenCalledWith('Third message');
+      expect(sentryCore.logger.info).toHaveBeenNthCalledWith(1, 'First message', LOG_ATTRIBUTES);
+      expect(sentryCore.logger.info).toHaveBeenNthCalledWith(2, 'Second message', LOG_ATTRIBUTES);
+      expect(sentryCore.logger.warn).toHaveBeenCalledWith('Third message', LOG_ATTRIBUTES);
     }).pipe(Effect.provide(loggerLayer)),
   );
 
@@ -99,7 +101,25 @@ describe('SentryEffectLogger', () => {
         Effect.map(d => d.toUpperCase()),
       );
       expect(result).toBe('DATA');
-      expect(sentryCore.logger.info).toHaveBeenCalledWith('Processing: data');
+      expect(sentryCore.logger.info).toHaveBeenCalledWith('Processing: data', LOG_ATTRIBUTES);
     }).pipe(Effect.provide(loggerLayer)),
   );
+
+  it.effect('sets the sentry.origin attribute on every log level', () =>
+    Effect.gen(function* () {
+      yield* Effect.logFatal('fatal');
+      yield* Effect.logError('error');
+      yield* Effect.logWarning('warning');
+      yield* Effect.logInfo('info');
+      yield* Effect.logDebug('debug');
+      yield* Effect.logTrace('trace');
+
+      for (const level of ['fatal', 'error', 'warn', 'info', 'debug', 'trace'] as const) {
+        expect(sentryCore.logger[level]).toHaveBeenCalledWith(
+          expect.any(String),
+          expect.objectContaining({ 'sentry.origin': 'auto.log.effect' }),
+        );
+      }
+    }).pipe(withAllLogLevels, Effect.provide(loggerLayer)),
+  );
 });