| William Annon | |
| Office: | Member of Belfast City Council |
| Constituency: | Belfast Area H |
| Term Start: | 18 May 1977 |
| Term End: | 19 October 1983 |
| Predecessor: | Mary Creighton |
| Successor: | Alfie Redpath |
| Office1: | Member of the Constitutional Convention for North Belfast |
| Term Start1: | 1975 |
| Term End1: | 1976 |
| Birth Date: | 4 June 1912 |
| Birth Place: | Lisnaskea, County Fermanagh, Northern Ireland |
| Death Date: | 19 October 1983 |
| Death Place: | Belfast, Northern Ireland |
| Party: | Democratic Unionist (from 1975) |
| Otherparty: | Ulster Unionist Party (until 1973) |
William Thomas Annon (4 June 1912 – 19 October 1983) was a Northern Irish unionist politician.
Annon was born in Lisnaskea, County Fermanagh.[1] He first became prominent as a member of the Ulster Unionist Party, becoming the chairman of its Sydenham branch, in Belfast.[2] He stood as an independent loyalist in East Belfast at the 1973 Northern Ireland Assembly election, taking 2,192 votes, and was not elected.[3]
He then joined the Democratic Unionist Party, and stood for it in North Belfast for the Northern Ireland Constitutional Convention; he took 4,132 first-preference votes and was the last candidate elected.[4]
Annon was also prominent in the Apprentice Boys of Derry, and represented it on the United Unionist Action Council.[5] At the 1977 Northern Ireland local elections, he was elected in Belfast Area H, and he held his seat in 1981.[6]
He died in October 1983 in Belfast, still serving on the council.[7]