Alan Campbell-Johnson CIE OBE (16 July 1913 – 25 January 1998) was a British Liberal Party politician, journalist, author and public relations consultant.

He notably worked on the staff of Sir Archibald Sinclair and served as press attaché to Lord Mountbatten as Viceroy of India.

[1] During the 1939–1945 war, Campbell Johnson enlisted in the Royal Air Force Volunteer Reserve in 1941 and received an emergency commission as an acting pilot officer in the Administrative and Special Duties Branch on 20 October.

He was a supporter of a Popular Front advocated by Sir Stafford Cripps which urged electoral co-operation between the Liberal and Labour parties.

With a general election expected for the Autumn of 1939, he had hopes of persuading the Labour party in Salisbury to allow him a free-run at the Conservative candidate.