Sperry Jones Rademaker (October 4, 1939 – January 31, 2005) was an American sprint canoer who competed at the 1968 Summer Olympics in Mexico City.
In 1975, Sperry and husband Jack ranked 8th in the C-2 Mixed Couples USCA National Race on the St. Josephs River, with a time of 2:35:22.
At that same race, Sperry placed 2nd in the C-2 Women's Competition Cruisers with Carol Davis of Winnetka, Illinois, with a time of 2:39:23.
The following year, she raced again at the USCA National Championships with Carol Davis on the Little Miami River in Milford, Ohio, to again place 2nd in the 20-mile C-2 Women Cruisers with a time of 3:02:15.
Sperry won the C-2 Women's event at the 1978 USCA National Championships in St. Charles, Illinois with Connie Barton of Homer, Michigan.