William E. Kiernan (22 May 1925 – 3 April 2006) was an English footballer. Kiernan began his career with Charlton Athletic when Jimmy Seed signed him as an amateur in 1943. However, he made no impact at the club and following his release he joined the Royal Ulster Rifles. He served in India and Hong Kong and whilst stationed in the latter played for Hong Kong where his performances caught the eye of Charlton again. A versatile midfielder, Kiernan established himself as a Charlton regular for most of his career and became the club's sixth highest scorer of all time. He also featured for the London XI that took part in the Inter-Cities Fairs Cup.