Glenavy (from Irish Lann Abhaigh, meaning 'church of the dwarf') is a village and civil parish in County Antrim, Northern Ireland. It is approximately 11 miles west of Belfast and eight miles north-west of Lisburn, and sits on the banks of the Glenavy river. In the 2021 census the village had a population of 2,384 people. In early documents it was written as "Lenavy".

Glenavy railway station was opened on 13 November 1871, and was part of the now closed Knockmore line. The station was closed in 2003

Glenavy is home to an intermediate-standard football team. Crewe United and Glenavy F.C. are members of the Mid-Ulster Football League. They play in Intermediate A and Division 2 respectively.

The area is also home to St. Joseph's Gaelic Athletic Association (GAA) club.

In the Orange Order, the Glenavy District have nine private lodges and seven Orange Halls. They are associated with the South Antrim Combine. The Glenavy Protestant Hall was built in 1870.