| Olympic medal record | ||
|---|---|---|
| Men's Rowing | ||
| Silver | 1964 Tokyo | double sculls |
| World Rowing Championships | ||
| Silver | Bled 1966 | 2x |
Seymour Legrand "Cy" Cromwell II (February 17, 1934 – May 2, 1977) was an American rower who competed in the 1964 Summer Olympics.
He was born in New York City and died in Cambridge, Massachusetts.
In 1964 he won the silver medal with his partner Jim Storm in the double sculls event.