Ictus may refer to:
Music Ictus, in music and conducting, the instant when a beat occurs Ictus, rhythmic marking in Solesmes editions of chant; see Rhythm in Gregorian chant "Ictus", a 1960s song composed by Carla Bley, American jazz composer ICTUS Records, independent record label for avant-garde jazz ICTUS, a Belgian orchestra specialising in contemporary classical music
Other uses Ichthys (also spelled "ictus", "icthus", and "ichthus"), an early Christian religious symbol Ictus Theatre, Chile Ictus, in poetry, a way of indicating a stressed syllable; see Ictus and breve
See also Palaeoapterodytes ictus, an animal species of the early Miocene or late Oligocene Nodens Ictus, a British rock band formed in 1986