Eva Fabian (born August 3, 1993 in Frederick, Maryland) is an American open water swimmer.
At the 2009 World Aquatics Championships, Fabian placed 10th in the 25 km.
At the 2010 FINA World Open Water Swimming Championships, Fabian won a gold medal in the 5 km. In the 10 km, she was disqualified along with Brazil's Poliana Okimoto for failing to round a turn buoy properly. At the 2010 Pan Pacific Swimming Championships, Fabian won a silver medal behind Christine Jennings in the 10 km open water event. At the 2011 Pan American Games Fabian placed fourth in the 25K open water event, only two seconds out of third place.