Ivan Davis (16 April 1937 – 13 March 2020) was a Unionist politician in Northern Ireland who served as an Ulster Unionist Party (UUP) Member of the Northern Ireland Assembly (MLA) for Lagan Valley from 1998 to 2003. Born in Lisburn, Davis was elected to Lisburn Borough Council in 1973, representing the Democratic Unionist Party (DUP). He was also elected to represent South Antrim at the 1982 Northern Ireland Assembly election. Despite this, Davis continued to sit as a UUP member, and leader of the UUP group, on Lisburn City Council until 2011. He died on 13 March 2020, aged 82.