Harold Sydney Miller (20 May 1902 – 24 October 1988) was an English footballer who played between the wars.An inside-forward, Miller's first professional club were Charlton Athletic, whom he joined from amateurs St Albans City.
Miller made 20 appearances for Charlton, scoring 11 times.
He won a solitary cap for England, which came against Sweden on 24 May 1923.
Miller scored in this match as England won 3-1.
He moved to across London to Chelsea in June 1923 for a fee of £1,500.
He remained there until 1939, making 365 appearances and scoring 44 goals.