AJJ

AJJ may refer to:
 * Amy Jo Johnson, actor
 * AJJ (band), an American folk punk band, formerly known as Andrew Jackson Jihad
 * Akjoujt Airport, Mauritania (IATA airport code AJJ)
 * American Jiu-Jitsu
 * Arakkonam Junction railway station, Tamil Nadu, India (by Indian Railways station code)