Mac Amhlaoibh is a masculine surname in the Irish language.

The surname originated as a patronym, however it no longer refers to the actual name of the bearer's father.

The surname originated as a patronym, however it no longer refers to the actual name of the bearer's father.

Anglicisations in use today include MacAuliffe, MacAuley, MacCauliffe, MacCauley, MacCawley, MacCowley, Kewley (on the Isle of Man), Cauley, Cawley, and Cowley.

One such family was centred in County Cork, and seated at Castle MacAuliffe near Newmarket.