Henning Christiansen was a Danish composer who was part of the Fluxus movement. He collaborated with artists such as Nam June Paik, Bazon Borck and Wolf Vostell, and with Joseph Beuys in his actions in the 1960s and 1970s, such as Manresa (1966), Eurasienstab (1967-1968) Haupström (1967) and Celtic (1970), among others.