One Man Army
- Army of One (disambiguation)
- Arthur W. Wermuth
- Baby on Baby 2
- French Canadians
- Jezper Söderlund
- Johnny Seven OMA
- Korean War
- Léo Major
- Mass (2004 film)
- Minute-Man
- One Man Army (Ensiferum album)
- One Man Army (Kassidy album)
- One Man Army (TV series)
- One Man Army (band)
- One Man Army (song)
- One Man Army and the Undead Quartet
- One Woman Army (disambiguation)
- OneManArmy
- Radical Redemption
- Shadow (2013 film)
- The One Man Army (1973 novel)
- World War II