Roscoff is a commune in the Finistère département of Brittany in northwestern France. Roscoff is renowned for its picturesque architecture, labelled petite cité de caractère de Bretagne since 2009. Roscoff is also a traditional departure point for Onion Johnnies (Breton farmers who travelled, originally on foot and later on bicycles, selling distinctive pink onions door to door in Great Britain).