A Cornish Assembly (Cornish: Senedh Kernow) is a proposed devolved law-making assembly for Cornwall along the lines of the Scottish Parliament, the National Assembly for Wales and the Northern Ireland Assembly in the United Kingdom.
The campaign for Cornish devolution began in 2000 with the founding of the Cornish Constitutional Convention, a cross-party, cross-sector association that campaigns for devolution to Cornwall. In 2001, the Convention sent 50,000 individually signed declarations calling for a Cornish Assembly to 10 Downing Street, during the then-government's attempt at introducing regional assemblies, however the call went unanswered. The act of turning Cornwall County Council into a unitary authority in 2009 was based on the idea that it would give Cornwall a stronger voice and be a "stepping stone" to a Cornish Assembly, and a "Government of Cornwall" bill was introduced to the UK Parliament in the same year by Cornish MP Dan Rogerson, but did not succeed.
Following the announcement of the 2014 Scottish independence referendum, and with promises of more devolution across the UK from Westminster politicians, there have been renewed calls for devolution to Cornwall. In November 2014 a petition was launched on the government petitions website campaigning for a Cornish Assembly. A law-making Cornish Assembly is party policy for the Liberal Democrats, Mebyon Kernow and the Greens.