Hamilton "Hammy" McMillan (born 13 July 1963) is a Scottish curler and world champion.

He won a gold medal as skip for the Scottish team at the 1999 Ford World Curling Championships in Saint John, New Brunswick.

He played third for the Tom Brewster rink before forming his own team.

[2] McMillan is the co-owner and manager of the Craignelder Hotel in Stranraer and is a keen golf player.

This biographical article relating to curling in Scotland is a stub.