The Cornish Alliance, also known as the Alliance for Cornwall, is a political coalition between the Social Liberal Party of Wessex and Cornish party, Mebyon Kernow. The Cornish Alliance was formed in 1997 between the two parties with similar interests and policies. The Alliance only runs for seats in the Cornish Assembly, which it currently holds the majority in and is only present in Cornish politics. The Mebyon Kernow Party holds a single seat in the Parliament of Wessex, although it is often considered part of the SLP.
The coalition is often considered far leftist, due to the SLP's leftist liberal and social policies. Mebyon Kernow, believes in liberal civic nationalism for the Cornish people, which is currently supported by the central Wessen Government.