Grace DeMoss Zwahlen (born 1927) is a former competitive women's American amateur golfer from Oregon. She was the first Pacific Northwesterner to be named to the United States Curtis Cup team in 1952 and then again in 1954. After retiring from competitive golf, Zwahlen was elected to numerous sports Halls of Fame. From 1986 to 2017 she gave back to the game of golf by serving as a girls' golf coach at high schools in Oregon and Southern California.