One Man Army

One Man Army may refer to:

• A one-man army, often a trope of action films, a heavily armed and well-trained combatant able to single-handedly fight a much larger enemy force.

• One Man Army (band), an American punk rock band that formed in 1996 and dissolved in 2005
• "One Man Army" (song), a 1999 single released by rock band Our Lady Peace
• "One Man Army" (Kassidy album), 2012
• "One Man Army" (Ensiferum album), 2015
• One Man Army and the Undead Quartet, a Swedish death metal band that formed in 2004
• OneManArmy, a hip hop M.C. also known as One Be Lo
• Jezper Söderlund, known as "One Man Army", a Swedish record producer
• The One Man Army, a 2005 album by Hardstyle DJ Radical Redemption
• "One Man Army", a song by DaBaby from Baby on Baby 2, 2022

• One Man Army (TV series), a Discovery Channel television show
• The One Man Army (1973 novel), by Moacyr Scliar
• Léo Major, a French-Canadian soldier in WWII and the Korean War
• Arthur W. Wermuth, known as the One Man Army of Bataan for his actions against the Japanese in the Philippines
• Johnny Seven OMA (One Man Army), a top selling 1964 toy gun
• Minute-Man, a Fawcett Comics/DC Comics superhero described as a "one-man army"