The Gallarus Oratory is a chapel on the Dingle Peninsula, County Kerry, Ireland. It has been presented variously as an early-Christian stone church by antiquary Charles Smith, in 1756; a 12th-century Romanesque church by archaeologist Peter Harbison in 1970; a shelter for pilgrims by the same in 1994. The local tradition prevalent at the time of Charles Smith attributed it to one Griffith More, being a funerary chapel built by him or his family at their burial place.

The Dingle Peninsula is the northernmost of the major peninsulas in County Kerry. It ends beyond the town of Dingle at Dunmore Head, the westernmost point of Ireland.