Declan O'Loan (born 5 August 1951) is a former member of the Northern Ireland Assembly in the North Antrim constituency, and a serving member of Ballymena Borough Council.
He is a member of the Social Democratic and Labour Party (SDLP), but the party whip was withdrawn on 25 May 2010.O'Loan was elected for the SDLP in the 2007 Assembly Elections.
In the May 2011 election, O'Loan ran as an SDLP candidate for re-election to the Assembly from North Antrim, but was eliminated in the last round of ballot-counting.
Declan O'Loan is married to Nuala O'Loan, a former Police Ombudsman for Northern Ireland.
He is also the Honorary Consul of Romania in Northern Ireland.
O'Loan studied at Imperial College London and Fitzwilliam College, Cambridge