Greg Nelson

Greg Nelson may refer to:
 * Greg Nelson (producer) (born 1948), music producer
 * Greg Nelson (make-up artist), Academy Award nominated make-up artist
 * Greg Nelson (computer scientist) (1912–2015), American computer scientist
 * Greg Nelson and Jenny Gardner, fictional characters from All My Children
 * Greg Nelson (curler) on List of teams on the 2012–13 Ontario Curling Tour
 * Greg Nelson (playwright) of Afghanada
 * Greg Nelson (politician) in Louisiana gubernatorial election, 1979