Sam Horsfield (born 8 October 1996) is an English professional golfer who plays on the European Tour.
Horsfield was the medalist at the 2017 European Tour Qualifying School to earn a place on the European Tour for 2018. He had a useful start to 2018, with a 4th place in the ISPS Handa World Super 6 Perth and finishing second at the Tshwane Open, two strokes behind George Coetzee. Later in the season he was tied for 5th place in the Sky Sports British Masters and finished 52nd in the Order of Merit.
In early August 2020, Horsfield had his breakthrough win on the European Tour when he won the Hero Open by one shot over Thomas Detry.Two weeks later, Horsfield won his second European Tour event at the Celtic Classic in Wales, two strokes ahead of Detry, who finished as runner-up again.