Alan Lancaster (born Alan Charles Lancaster, 7 February 1949 in Peckham, London, England) is an English bassist, best known as a founding member of the English rock band Status Quo. As well as contributing to songwriting, he was also one of the lead vocalists on albums and live concerts taking the lead on tracks such as "Backwater", "Bye Bye Johnny", "High Flyer" and "Roadhouse Blues", etc.
Alan Lancaster formed the group in 1962 with his then schoolmate Francis Rossi. His final performance as a full-time member of Status Quo was at Wembley Stadium on 13 July 1985 for the opening of Live Aid. In March 2013 he collaborated with his old bandmates for a series of "Frantic Four" concerts in the UK.