The British Airlines Stewards and Stewardesses Association (BASSA) is a branch of the British trade union Unite, exclusively for British Airways (BA) cabin crew.
Originally part of the Transport & General Worker's Union (T&GWU), BASSA membership stands at 10,883, making it the largest branch of the T&GWU.
BASSA is managed by a committee of wholly elected representatives, all of whom work as BA cabin crew. BASSA has offices in Abbey House at Heathrow Airport, and in Jubilee House at Gatwick Airport.