Terri Dunning (born 11 March 1985) is a former British swimmer. She specialised in butterfly and won medals at the 2005 Summer Universiade (World University Games), 2006 European Aquatics Championships and 2006 Commonwealth Games. Terri set a new British Record three times in her career breaking the 100 Butterfly (long course) at the 2006 Commonwealth Games, the 100 Butterfly (short course) at the 2005 European Short Course Championships in Trieste and the 200 Butterfly (short course) when she missed a medal by just 0.01sec at the 2007 European Short Course Championships in Debrecen.