Karoulia, Hermit skete on the southern shore of Mount Athos, Greece.

Karoulia is a skete of Mount Athos subordinate to the Great Lavra, on the southernmost shore of the peninsula. Its 12 huts, built in the 17th century, and natural caves sit on the cliff face between 100 and 500 m above the sea. Two pale stone buildings with grey gabled roofs and wooden galleries stand on the bare rock behind low stone walls. It is divided into Outer Karoulia by the seashore and Inner Karoulia, nicknamed "Frightful Karoulia", in the cliffs.

The 12 cells of Karoulia were built in the 17th century. According to legend, a repentant local brigand founded one of the first hermitages at the end of the 18th or beginning of the 19th century, building a small kalyva with a chapel dedicated to St George and becoming a monk under the name Stamates. In 1999 a fire destroyed the hermitage of St Sava of Serbia in Outer Karoulia; it was rebuilt in stone in 2004-2005 with help from Russian monks and donors. A hermitage damaged by fire in 2000 was rebuilt between 2014 and 2018 and named for St Innocent of Irkutsk and St David of Thessaloniki.

The name Karoulia comes from the Greek word for pulley, referring to the hoists by which monks raise supplies from the sea. The skete is divided into Outer Karoulia, the lower part by the shore, and Inner Karoulia, nicknamed "Frightful Karoulia", in the cliffs. Its inhabitants are known as zealots and anti-ecumenists.

Access to the huts and caves is only possible by ladder or rope, and the climb suits those in good physical condition. The settlement lies on the southernmost shore of the peninsula, about 6 km from the Great Lavra. Its port is Katounakia, from which a ferry runs to Dafni.

The skete's name comes from the Greek word for pulley, a nod to the rope-and-pulley systems once used to haul supplies up from the sea. Russian monks lived here through much of the 20th century, among them Nikon of Karoulia, a hermit at St. George's from 1941 to 1963.