Trenoweth (/trəˈnaʊəθ/; Cornish: Trenoweth "new town") is a small settlement, located in the north of the island of St Mary's in the Isles of Scilly, Cornwall, England.

[1] It is situated in an inland and rural part of the island, northwest of Maypole (via Watermill and Borough) and east of Telegraph (via Pungie's Lane).

Also nearby, to the northeast, is Innisidgen, a prehistoric site on the coast.

The Isles of Scilly Wildlife Trust are based in Trenoweth.

This article about a location in the Isles of Scilly, Cornwall is a stub.