|Full name||Alexander Balfour Chaplin|
|Date of birth||6 February 1892|
|Place of birth||Dundee, Scotland|
|Date of death||1986 (aged 93–94)|
|Playing position||Full back|
|* Senior club appearances and goals counted for the domestic league only.
Born in Dundee, Chaplin started his career with Dundee Hibernian, signing for the club in May 1914. He played regularly during the 1914-15 season before volunteering for military service. He remained registered with Dundee Hibs throughout the First World War, but never played for the club again and was released in April 1919.
He played for Tottenham Hotspur for four games before moving on to Fulham; between 1919 and 1926, he played 259 league matches for Fulham, scoring one goal. He made 276 appearances in all competitions for the club.