Donald Anderson, Baron Anderson of Swansea PC DL (born 17 June 1939) is a Welsh Labour politician, who was one of the longest-serving Members of Parliament in recent years, his service totalling 34 years.^[1] Since 2005, he has served as a Labour peer in the House of Lords.

Anderson was born in Swansea and educated at the local Brynmill Primary School and Swansea Grammar School before studying at Swansea University.

He entered the House of Commons in 1966^[2] for Monmouth until being defeated in 1970 by the Conservative John Stradling Thomas.

From 1971 to 1974, he was a resident in Kensington and Chelsea and councillor in a neighbouring borough.^{[citation needed]}

He then re-entered the Commons in October 1974,^[3] as MP for Swansea East. He was sworn of the Privy Council in 2000,^[4] and retired from Parliament at the 2005 general election.

In 2003, he voted in favour of the Iraq War.^[5]

In the 2005 Dissolution Honours, he was raised to the peerage as Baron Anderson of Swansea, of Swansea in the County of West Glamorgan.^[6] He was appointed a Deputy Lieutenant of the County of West Glamorgan in January 2006.^[7] Anderson belongs to Labour Friends of Israel.^[8]

Anderson married Dorothy Trotman in 1963 and has three sons.