Self-defense force may refer to:

Militia, an army or some other fighting organization of non-professional and/or part-time soldiers Japan Self-Defense Forces, the unified military forces of Japan, established in 1954 Japan Maritime Self-Defense Force Japan Ground Self-Defense Force Japan Air Self-Defense Force Self-Defense Forces (NES regions), a multi-ethnic territorial defense militia in North and East Syria People's Self-Defense Force, a South Vietnamese militia during the Vietnam War

See also

Military, or armed forces, a heavily armed, highly organized force primarily intended for warfare Ministry of defence Zombie Self-Defense Force, a 2006 Japanese comedy film