David McMullan (born 1901) was an Irish footballer who played as a defender for Liverpool in The Football League. McMullan signed for Liverpool from Belfast Distillery in 1925. He made 10 appearances during his debut season, however he only made 2 the following season. He had a run of 14 consecutive league matches in the team during the 1927–28 season, which was to be his last at Liverpool.[1] McMullan was capped three times at international level by Ireland.