diff --git a/.changelog/5438.changed b/.changelog/5438.changed
new file mode 100644
index 00000000000..c4593e028b6
--- /dev/null
+++ b/.changelog/5438.changed
@@ -0,0 +1 @@
+`opentelemetry-sdk`: unify logging force_flush timeout defaults to 10000ms
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/__init__.py
index 5f40c5c8c70..e142fa3e34c 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/__init__.py
@@ -384,7 +384,7 @@ def shutdown(self) -> None:
         """Called when a :class:`opentelemetry.sdk._logs.Logger` is shutdown"""
 
     @abc.abstractmethod
-    def force_flush(self, timeout_millis: int = 30000) -> bool:
+    def force_flush(self, timeout_millis: int = 10_000) -> bool:
         """Export all the received logs to the configured Exporter that have not yet
         been exported.
 
@@ -429,7 +429,7 @@ def shutdown(self) -> None:
         for lp in self._log_record_processors:
             lp.shutdown()
 
-    def force_flush(self, timeout_millis: int = 30000) -> bool:
+    def force_flush(self, timeout_millis: int = 10_000) -> bool:
         """Force flush the log processors one by one
 
         Args:
@@ -501,7 +501,7 @@ def on_emit(self, log_record: ReadWriteLogRecord) -> None:
     def shutdown(self) -> None:
         self._submit_and_wait(lambda lp: lp.shutdown)
 
-    def force_flush(self, timeout_millis: int = 30000) -> bool:
+    def force_flush(self, timeout_millis: int = 10_000) -> bool:
         """Force flush the log processors in parallel.
 
         Args:
@@ -977,7 +977,7 @@ def shutdown(self) -> None:
             atexit.unregister(self._at_exit_handler)
             self._at_exit_handler = None
 
-    def force_flush(self, timeout_millis: int = 30000) -> bool:
+    def force_flush(self, timeout_millis: int = 10_000) -> bool:
         """Force flush the log processors.
 
         Args:
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/export/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/export/__init__.py
index b9763d92be9..2a891370d63 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/export/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/export/__init__.py
@@ -260,7 +260,7 @@ def shutdown(self):
         self._shutdown = True
         self._exporter.shutdown()
 
-    def force_flush(self, timeout_millis: int = 30000) -> bool:  # pylint: disable=no-self-use
+    def force_flush(self, timeout_millis: int = 10_000) -> bool:  # pylint: disable=no-self-use
         return True
 
 
@@ -353,7 +353,7 @@ def on_emit(self, log_record: ReadWriteLogRecord) -> None:
     def shutdown(self):
         return self._batch_processor.shutdown()
 
-    def force_flush(self, timeout_millis: int | None = None) -> bool:
+    def force_flush(self, timeout_millis: int = 10_000) -> bool:
         return self._batch_processor.force_flush(timeout_millis)
 
     @staticmethod