The Manchester Unity of Oddfellows was an Oakley-class lifeboat of the Royal National Lifeboat Institution (RNLI) stationed at Sheringham in the English county of Norfolk from 10 July 1961 until 1990 when she was replaced after 29 years service by an Atlantic 75 second generation Rigid Inflatable Boat (RIB) in May 1992. During the time that The Manchester Unity of Oddfellows was on station at Sheringham, she performed 127 service launches, rescuing 134 lives.

The Oakley-class lifeboat refers to two types of self-righting lifeboat operated by the Royal National Lifeboat Institution (RNLI) around the coast of the United Kingdom and Ireland between 1958 and 1993. The 37-foot (11.3 m) Oakley was designed for carriage launching, while the larger 48-foot-6-inch (14.8 m) version was designed for slipway launching or to lie afloat. During their service they saved a combined total of 1,456 lives in 3,734 rescue launches.