Alistair Jardine "Ali" McMordie (born 31 March 1959 in Belfast, Northern Ireland) is a bass guitarist, best known as a founding member of Stiff Little Fingers, playing with the band from 1977 until they broke up in 1983, and joined them on the first few years of reunion tours five years later. Around 1986 he provided, along with other Friction Groove members, the core band behind Sinéad O'Connor, who had just arrived in London from Dublin. Ali was later sacked. Besides being a live musician, McMordie runs Alistair McMordie Tour Management.