A modus operandi is someone's habits of working, particularly in the context of business or criminal investigations.
Modus operandi may also refer to:
Modus Operandi (Photek album), 1997 Modus Operandi (Jimmy Barnes album), 2019 "Modus Operandi", a song by Airbase "Rare Species (Modus Operandi)", a song by Mobb Deep from the Soul in the Hole soundtrack Modus Operandi (film), a 2009 film directed by Frankie Latina