William Henderson (5 January 1900 – January 1934) was an English professional footballer. He was born in Whitburn, County Durham. Billy Henderson, a right-back, began his career with his local side from whom he joined Brighton & Hove Albion. He moved to Aberdare Athletic and played 19 league games in Aberdare's first ever season in the Football League (1921–22). Henderson was only 34 years old when he died from tuberculosis.