Sherwin Campbell Badger (August 29, 1901 – April 8, 1972) was an American figure skater who competed in singles and pairs. He was born in Boston, Massachusetts, on August 29, 1901, and died on April 8, 1972, in Sherborn, Massachusetts.
In 1918, he was the junior champion and won the silver medal in pair skating, with Clara Frothingham, at the U.S. Figure Skating Championships. He came in second place in pair skating in 1922, with Edith Ratch.
He earned the men's titles at the U.S. Nationals from 1920 through 1924. He also captured the pairs gold medal with partner Beatrix Loughran between 1931 and 1933, and the pair came in fifth place at the 1928 Winter Olympics and won the silver medal at the 1932 Winter Olympics. They also competed at the Worlds Championships three times, coming in fifth place in 1928 and in third place in 1930 and 1932.
Badger was president of the United States Figure Skating Association in 1930 and 1934. As of 2011, he was the only president of the federation who was a national champion at the same time. He was also a world judge.
Badger was briefly married to novelist and World War II spy Mary Bancroft. He graduated from Harvard University in 1923.