Maximo Guillermo Manus DSO, MC & Bar (9 December 1914 – 20 September 1996) was a Norwegian resistance fighter during World War II, specialising in sabotage in occupied Norway.

After many years of extensive travelling, Manus returned to Scandinavia before the outbreak of World War II, upon which he soon joined up with the Norwegian Army and went to fight in a volunteer detachment with the Finns against the Soviets.

He fought during the Norwegian campaign, after which he decided to return to Oslo and work underground against the occupiers, both organising a resistance movement, illegal public propaganda and the manufacture of weaponry.

The doctor at the hospital lied to the Gestapo officers, saying Manus needed treatment for a broken back, an injured shoulder and a serious concussion.

In Norway, he resumed his organizational work and made various sabotage attempts on ships in the Oslofjord with home-designed limpet mines and even 'swimmer-assisted torpedoes'.

Manus' second book was Det blir alvor (It Gets Serious), in which he continues the saga of his resistance work and personal successes in the 1945 sinking of two large vessels of great importance to the German war machine.

When peace was declared, Manus found himself chosen to be the personal protection officer of the then Crown Prince of Norway on his triumphal parade in Oslo, and then also with King Haakon VII.

In addition to his Norwegian decorations, Manus received the British Distinguished Service Order (DSO) as well as the Military Cross (MC) and Bar (see list below).

In December 2007, it was announced that a film about the life of Max Manus was to be made in Norway,[5] starring Aksel Hennie in the leading role.

A ship that was destroyed and sunk as a result of planning by the Pelle group, was recovered after the war and renamed "Max Manus" (formerly M/S Troma).