The 2017 Senior Open Championship was a senior major golf championship and the 31st Senior Open Championship, held 27–30 July at Royal Porthcawl Golf Club in Porthcawl, Wales. It was the 2nd Senior Open Championship played at the course and the 15th Senior Open Championship played as a senior major championship. World Golf Hall of Fame member Bernhard Langer won by three strokes over Corey Pavin. The 2017 event was Langer's third Senior Open Championship title and his tenth senior major championship victory. Langer also won the 2014 Senior Open Championship at Royal Porthcawl Golf Club.