Phyllis C. Koehn [″Sugar″] (September 15, 1922 – May 28, 2007) was an American pitcher and utility who played from 1943 through 1950 for six different teams of the All-American Girls Professional Baseball League.

She entered the AAGPBL in 1943 with the Kenosha Comets, playing for them two and a half years before joining the South Bend Blue Sox (1945-'48), Peoria Redwings (1948), Racine Belles (1948-'49), Fort Wayne Daisies (1949) and Grand Rapids Chicks (1950).

In her rookie season, she hit a respectable .238 batting average with four home runs, considering the league's dead-ball era.

She made seven playoffs appearances with Kenosha (1943-'44), South Bend (1946-'47), Racine (1948), Fort Wayne (1949) and Grand Rapids (1950), but could not reach the league finals.

She was also one of two hundred players to attend the first AAGPBL spring training outside the United States, which was held in 1947 in Cuba at the Gran Stadium de La Habana.