Derek Anthony Swan (born 24 October 1966) is an Irish former footballer who played as a forward.
He played for Home Farm, Bohemians, Port Vale, FC Wageningen, Shamrock Rovers, Dundalk, Glentoran and UCD.
Swan began his career with Home Farm in 1985–86, making his debut against Shamrock Rovers in November 1985.
He spent the next six years at Dalymount, including scoring at Helsingin Jalkapalloklubi in a 1995 UEFA Intertoto Cup tie.
In 2000, he signed for University College Dublin, where his goals helped UCD to avoid relegation as they secured their top-flight status for the following 2001–02 season, with one point to spare.