William Michael Joyce (September 21, 1865 – May 8, 1941) was an American professional baseball player and manager.
He was a third baseman over parts of eight seasons with the Brooklyn Ward's Wonders (of the Players' League), Boston Reds (of the American Association), Brooklyn Grooms, Washington Senators, and New York Giants.
He also served as manager during his tenure with the Giants.
Joyce tied for the National League lead in home runs in 1896 (with Ed Delahanty) while playing for Washington and New York, and finished second three other times.
He holds the record with four triples in one game, which he accomplished in 1897 (tying George Strief's 1885 record).
In 1891, he reached base in 64 consecutive games, a major league record not bettered until 1941.
Joyce was born in St.