Admiral Bror Per Harald Stefenson (4 September 1929 – 3 October 2018) was a Swedish Navy officer.

[3] He was promoted to rear admiral in 1978 was chief of staff of the Southern Military District (Milo S) from 1978 to 1979.

[8] Stefenson took office as Chief of the Defence Staff on 1 October 1982, the same day the so-called Hårsfjärden incident occurred[9] when a foreign submarine was trapped by the Swedish Navy and a reported 44 depth charges and 4 naval mines where detonated, trying to sink the submarine, but it was later determined that it avoided the trap or fled at an early stage.

Stefenson would later write Från periskop och brygga ("From periscope and bridge") with diary notes and memories from the submarine hunt 1–10 October 1982.

[10][11] He left the posts in the Defense Staff in 1987 and became head of the Swedish National Defence College.

Only the Supreme Commander of the Swedish Armed Forces, if he came from the navy, as well as the king, can today hold the rank of admiral.

[13] Stefenson was elected into the Royal Swedish Society of Naval Sciences in 1968 with number 908[14] and was its president from 1987 to 1992.