| John Blewitt | |
| Full Name: | John Barry Blewitt |
| Nationality: | British |
| Birth Date: | 19 December 1945 |
| Birth Place: | Richmond, England |
| Sport: | Speed skating |
John Barry Blewitt (born 19 December 1945) is a British speed skater. He competed at the 1968 Winter Olympics and the 1972 Winter Olympics.[1]