On-off or Onoff may refer to: On-off control, a type of feedback controller On-off keying, a type of line modulation On-off relationship, a form of personal relationship On-Off Singles, a type of tennis game On-off switch, a type of electric switch Onoff (retailer), an electronics retailer in Estonia, formerly also active in Sweden and Finland Music Onoff (Irish band), an Irish punk-rock band On/Off (Japanese band), a Japanese j-pop band On/Off (ONF EP), 2017 On/Off (Run On EP), 1995 On-Off (album), a 2006 album by Marcin Rozynek
See also On and Off (disambiguation) "Off & On", a song by Sophie Ellis-Bextor "Off/On", a 2022 song by Collar OffOn, a film by Scott Bartlett