Sidney Quinn Curtiss (September 4, 1917 – January 24, 1994) was an American politician who was a member of the Massachusetts House of Representatives from 1949 to 1979.

Curtiss was born on September 4, 1917, in Sheffield, Massachusetts.

[1] He attended St. Paul's School and graduated from Harvard College in 1940.

He served in the United States Army during World War II.

[1] Curtiss died on January 24, 1999, in Lenox, Massachusetts.