A ninja was a secret agent or mercenary of feudal Japan specializing in unorthodox arts of war.

Ninja may also refer to:

People

• Ninja (British rapper), a member of the band The Go! Team named Nkechi Ka Egenamba

• Ninja (gamer), the alias of American professional gamer Richard Tyler Blevins

• Ninja (singer), Indian singer and actor

• Ninja, the alias of Watkin Tudor Jones, a South African rapper and member of hip hop group Die Antwoord

• Ninja Sarasalo, Finnish model and singer

• Bert Batawang, a boxer with the ring name The Ninja

• Murilo Rua, ring name Ninja, an MMA fighter

• Rodrigo Ninja, Brazilian footballer

Arts, entertainment, and media

• Ninja (comic book), a 1983–98 Yugoslav novel/comic series

• Ninja (film), a 2009 film by Isaac Florentine

• The Ninja (novel), a 1980 novel by Eric Van Lustbader

Music

• Ninja (album), an album by Christina Aguilar

• Ninja (group), a Japanese boy-band active 1990–1997

Songs

• "Ninja" (Soprano song), 2020

• "Ninja" (Young Thug song), 2025

• "Ninja", a song by Europe from the 1986 album The Final Countdown

• "Ninja", a song by Jay Chou from the 2001 album Fantasy

• "Ninjas", a 2017 song by Rey Pila

Television

A number of television shows based on a Ninja Warrior concept:

• Sasuke (TV series) (also shown as Ninja Warrior), a Japanese television show based around an obstacle course

• Kunoichi (TV series) (Women of Ninja Warrior), a TV show spun-off from Sasuke, featuring exclusively female competitors

• Sasuke Ninja Warrior Indonesia, an Indonesian adaptation of Sasuke's format

• American Ninja Warrior, an American variation of Sasuke that began as a qualifier to compete on Sasuke

• Team Ninja Warrior, a spin-off of American Ninja Warrior focused on team competition

• Ninja Warrior UK, a British adaptation of the Ninja Warrior format

• Australian Ninja Warrior, an Australian adaptation of the Ninja Warrior format

• Ninja Warrior Germany, a German adaptation of the Ninja Warrior format

Video games

• Ninja (1986 video game) (arcade title: Ninja Mission), a flip screen beat 'em up game developed by Sculptured Software and released by Mastertronic

• Ninja: Shadow of Darkness, a 1998 video game for the PlayStation

• Sega Ninja, a video game also known as The Ninja or Ninja Princess

Computing

• Ninja (build system), a small build system with a focus on speed by Google

• .ninja, a generic top-level domain

Groups, teams, organizations

• Ninja (militia), a militia in the Republic of the Congo

• Ninjas in Pyjamas, Swedish professional video game esports team

Roller coasters

• Ninja (Six Flags Magic Mountain), an inverted roller coaster at Six Flags Magic Mountain

• Ninja (Six Flags St. Louis), a roller coaster at Six Flags St. Louis

• Blue Hawk (roller coaster), formerly known as Ninja, a roller coaster at Six Flags Over Georgia

Other uses

• Kawasaki Ninja, several series of Japanese sport bikes

• SharkNinja, makers of Ninja brand kitchen appliances

• NINJA loan, for "no income no job or asset", a term related to the US subprime mortgage crisis (see no income, no asset)

• Ninja miner, a Mongolian small-scale gold miner

See also

• List of ninja films

• Modern schools of ninjutsu

• Nina (name)

• Ninja in popular culture

• Kunoichi (disambiguation)

• Ninja Warrior (disambiguation)

• Shinobi (disambiguation)