Teampall Na hAoine, also known as the Church of the Friday, is a historic church located on the island of Inis Meain in the Aran Islands, Ireland. This medieval church dates back to the 12th century and is known for its simple yet striking architecture, featuring a rectangular structure with a gabled roof. It is dedicated to Saint Brendan, a prominent figure in Irish Christianity. The church is surrounded by a graveyard that contains several ancient tombstones, reflecting the rich history of the area. Teampall Na hAoine is an important site for both locals and visitors, offering insights into the early Christian heritage of Ireland and the architectural styles of the time.