Eric Wrixon (born 29 June 1947, Belfast, Northern Ireland) is a musician from Northern Ireland. He was a founder member of both Them and Thin Lizzy. It was Wrixon who came up with the enigmatic band name 'Them' (from the 1954 sci-fi film Them!), but as he was a minor his parents declined to sign a recording contract on his behalf and he was replaced in July 1964 prior to recording with the band. By August 1965, he had completed his studies and very briefly returned to Them.