Henry Edward Diesen (3 April 1883 – 7 January 1953) was a Norwegian naval officer. He was born in Trondhjem as a son of telegrapher Edward Diesen (1852–1909) and Johanne Christophine Stenersen (1855–1936). He was a first cousin of Emil Diesen and Andreas Melchior Seip Diesen, and a first cousin once removed of Andreas’s son Ernst Diesen. He lived in Borre near Karljohansvern. Here he edited the newspaper Hortens Avis from 1919 to 1920 and was a member of the executive committee of Borre municipal council from 1920 to 1923. He married Caroline Elisabeth Fretheim (1886–1968) in November 1907.