The Cross of Cong (Irish: Cros Chonga, "the yellow baculum") is an early 12th-century Irish Christian ornamented cusped processional cross, which was, as an inscription says, made for Tairrdelbach Ua Conchobair (d. 1156), King of Connacht and High King of Ireland to donate to the Cathedral church of the period that was located at Tuam, County Galway, Ireland. The cross was subsequently moved to Cong Abbey at Cong, County Mayo, from which it takes its name.
It was designed to be placed on top of a staff and there is also a reliquary, designed to hold a purported piece of the True Cross. This gave it additional importance as an object of reverence and was undoubtedly the reason for the object's elaborate beauty.