A halfback, half back, or half-back may refer to:
, in rugby league football Halfback (rugby league) Half-back (rugby union) Fly-half (rugby union) Scrum-half (rugby union) Half back (association football), an obsolete position Centre-back Wing half Halfback (American football), a type of running back Halfback (Canadian football), a type of defensive back Half-back line, in Australian rules football
See also Fullback (disambiguation) Quarterback Three-quarter back