The Socialist Educational Association (SEA) is a socialist educational organisation in the United Kingdom. It is affiliated to the Labour Party as a socialist society. It assists in the development of and monitors educational policies of the Labour Party. It aims to promote non-selective education, equality of opportunity and lifelong availability of adequate educational provision throughout the UK. It believes in all compulsory education being free and adequately resourced. It seeks to enlist the support of the trade union and co-operative movements and to encourage support for a socialist vision of education amongst teaching staff.