| Adrian McQuillan | |
| Office: | Member of Causeway Coast and Glens Borough Council |
| Constituency: | Bann |
| Term Start: | 2 May 2019 |
| Term End: | 18 May 2023 |
| Predecessor: | Sam Cole |
| Successor: | Dawn Huggins |
| Constituency Am1: | East Londonderry |
| Assembly1: | Northern Ireland |
| Term Start1: | 7 March 2007 |
| Term End1: | 2 March 2017 |
| Predecessor1: | Norman Hillis |
| Successor1: | Seat abolished |
| Office2: | Member of Ballymoney Borough Council |
| Constituency2: | Bann |
| Term Start2: | 7 June 2001 |
| Term End2: | 22 May 2014 |
| Successor2: | Council abolished |
| Birth Date: | 8 June 1965 |
| Birth Place: | Ballymoney, Northern Ireland |
| Nationality: | British |
| Party: | Independent Unionist (since 2023) Democratic Unionist Party (until 2023) |
Adrian McQuillan, (8 June 1965, Ballymoney) is a former Northern Irish unionist politician who was a Causeway Coast and Glens Councillor for the Bann DEA from 2019 to 2023.
He previously served as a Democratic Unionist Party (DUP) Member of the Northern Ireland Assembly (MLA) for East Londonderry from 2007 to 2017
A joiner by training and postman for 18 years, McQuillan was first elected to Coleraine Borough Council the 2001 local elections, representing the Bann District. He was re-elected to the Council in 2005, and 2011.
He was later elected to the Northern Ireland Assembly as a one of three DUP MLAs for East Londonderry at the 2007 election, but lost his seat in the 2017 Northern Ireland Assembly election.
He was elected to Causeway Coast and Glens Borough Council for the Bann District in the 2019 Northern Ireland local elections. In January 2023, after falling out with the DUP leadership over bullying allegations, he resigned from the party to sit as an Independent. He stood for re-election in the local elections that same year, but was unsuccessful.
He is a member of Moneydig Presbyterian Church.[1]