Lanner, Stithians and Gwennap is an electoral division of Cornwall in the United Kingdom which returns one member to sit on Cornwall Council.

It was created at the 2021 local elections, being created from the former divisions of Carharrack, Gwennap and St Day, and Lanner and Stithians.

The current councillor is John Thomas, an Independent.

The parish of Gwennap includes the village of Gwennap and the hamlets of Burncoose, Comford, Coombe, Crofthandy, Cusgarne, Fernsplatt, Frogpool, Hick's Mill, Tresamble and United Downs.

The parish of Stithians includes the villages of Longdowns, Stithians, and the hamlets of Hendra, Herniss, Penhalurick, and Tresevern Croft.