diff --git a/Lib/asyncio/streams.py b/Lib/asyncio/streams.py
index bf15f517e50dce..14861dffce3a84 100644
--- a/Lib/asyncio/streams.py
+++ b/Lib/asyncio/streams.py
@@ -392,6 +392,10 @@ async def start_tls(self, sslcontext, *,
self._transport = new_transport
protocol._replace_writer(self)
+ def __del__(self):
+ if not self._transport.is_closing():
+ self.close()
+
class StreamReader:
diff --git a/Misc/NEWS.d/next/Library/2023-08-05-05-10-41.gh-issue-106684.P9zRXb.rst b/Misc/NEWS.d/next/Library/2023-08-05-05-10-41.gh-issue-106684.P9zRXb.rst
new file mode 100644
index 00000000000000..85bce76229853f
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2023-08-05-05-10-41.gh-issue-106684.P9zRXb.rst
@@ -0,0 +1 @@
+Close :class:`asyncio.StreamWriter` when it is not closed by application leading to memory leaks. Patch by Kumar Aditya.
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