James Frederick "Jim" Nicholson (born 29 January 1945) is a Northern Ireland Ulster Unionist Party politician, who is currently a Member of the European Parliament (MEP).
Nicholson was born in 1945 in Armagh, Northern Ireland. Educated locally, he later worked as a farmer on the family farm. He joined the Ulster Unionist Party in the early 1970s and was the Secretary/Organiser of Mid-South Armagh Unionist Association from 1973 to 1983. He was elected to his first public office in 1976 as a member of Armagh council; he served until 1997 and was chairman of the council in 1994–95.
Nicholson was elected as the Member of Parliament (MP) for Newry and Armagh in the 1983 general election for the UUP. At Westminster, he served on the Agriculture Select Committee. Along with all other unionist MPs, he resigned from the House of Commons in December 1985 as part of a wider protest against the Anglo-Irish Agreement of that year and to secure a renewed mandate from their electors. A by-election to fill his seat took place in January 1986.