Major General Hugo Adolf Magnus Christoffer Gadd (13 March 1885 – 13 December 1968) was a senior Swedish Army officer.

[1] Gadd was commissioned as an officer in 1906 and was assigned to Göta Artillery Regiment with the rank of underlöjtnant.

[1] In 1932, Gadd was promoted to lieutenant colonel of the General Staff and appointed senior adjutant.

[2] The same year he was appointed Vice Chief of the Military Office of the Land Defence (Lantförsvarets kommandoexpedition).

[1] After his retirement, Gadd became chairman of the Swedish Women's Auxiliary Veterinary Corps (Svenska Blå Stjärnan) and its central board in 1949.