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 face numerous enemies alone

In music

• 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

Other uses

• One Man Army (TV series), a Discovery Channel television show
• 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