Rosie is a British sitcom written by Roy Clarke that was broadcast between 1977 and 1981. It was set in the fictitious Yorkshire town of Ravensbay, a name most probably derived from a combination of Ravenscar and Robin Hood's Bay, seaside villages near the seaside town of Scarborough, North Yorkshire where the series was filmed. The central character was PC Penrose ("Rosie"), a young and inexperienced police officer, played by Paul Greenwood.

The titular character is a nod towards Charles Penrose, who famously recorded the comedy song "The Laughing Policeman".

Rosie was preceded by an earlier series of seven episodes, broadcast in 1975, called The Growing Pains of PC Penrose which was set in the fictitious Yorkshire town of Slagcaster and filmed in Clarke's native South Yorkshire, with the majority of the opening scenes of series one filmed in the village of New Rossington, although the colliery shown in episode one is possibly Hatfield Colliery. The series then underwent a revamp with a new title (Rosie), setting and signature tune.