Harry Alexander (6 January 1879 – 17 October 1915) was a rugby union international who represented England from 1900 to 1902, and was captain for one match, against Wales. Alexander was born in Cheshire, and after attending Uppingham School, went up to Corpus Christi College, Oxford, where he earned two blues in rugby. While playing for Birkenhead Park after graduating from Oxford, he was selected in 1900 to play for England and earned seven caps over the course of three seasons. In 1902, he authored a book on rugby, How to Play Rugby Football. The Theory and Practice of the Game. Later, he played for Richmond and was captain in his final season, 1905 to 1906.