Arnold Johannes Hyacinthus Mühren (born 2 June 1951 in Volendam, North Holland) is a Dutch football manager and former midfielder. His older brother Gerrie, also a midfield player, won three European Cup titles with Ajax in the early 1970s. Mühren is among the few players to have won all three major UEFA-organised club competitions, the European Cup (1972–73), the Cup Winners' Cup (1986–87) and the UEFA Cup (1980–81). The last of these was won with Ipswich Town, while the other titles were won while playing for Ajax. He is also one of the two Dutch players, together with Danny Blind, to have won all UEFA club competitions.