Moylough ("plain of the lake") is a small rural village located in County Galway in Ireland. It is located on the N63 national secondary road, and is served also by the R328 and R364 regional roads. It is 50 km from Galway, 30 km from Roscommon, and 5 km northwest of Mountbellew. It is twinned with Elliant in Brittany.

It used to be part of the kingdom of the Soghain of Connacht.

Moylough is the birthplace of Thomas Higgins who became the shortest serving MP in Westminster when, representing the Irish Parliamentary Party, he was posthumously declared elected a Member of Parliament of the House of Commons of the United Kingdom of Great Britain and Ireland on 26 January 1906.[citation needed]

Thomas Carr, Archbishop of Melbourne 1886-1917, was born near Moylough in 1839.

There is a statue of the Galway Gaelic Footballer Enda Colleran in the town.

Former Irish Rugby Manager Eddie O'Sullivan is from Moylough.