David McMillan (born 14 December 1988) is an Irish professional footballer who plays for Scottish League One club Falkirk, on loan from Scottish Premiership club St Johnstone.
He has previously played for UCD, St Patrick's Athletic, Sligo Rovers and Dundalk.
He also had a spell on loan at Hamilton Academical.
He is currently the League of Ireland's all-time leading scorer in the UEFA Champions League and was joint top-scorer in the 2016–17 UEFA Champions League qualifying phase and play-off round.
McMillan has also been named League of Ireland Premier Division Player of the Month on three occasions.
His older brother, Evan is also a footballer and they have been teammates at UCD, St Patrick's Athletic and Sligo Rovers.
In addition to playing football, McMillan is also a qualified architect.