| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Franciscus "Frans"•de Vreng | |
| Used name | Frans•de Vreng | |
| Born | 11 April 1898 in Amsterdam, Noord-Holland |  NED |
| Died | 13 March 1974 (aged 75 years 11 months 2 days) in Amsterdam, Noord-Holland | NED |
| Affiliations | De Germaan — Amsterdam, Noord-Holland | NED |
| NOC | Netherlands | NED |
| Medals | OG |
| Gold | 0 |
| Silver | 0 |
| Bronze | 1 |
| Total | 1 |
Frans de Vreng raced on the track and on the road. He was a professional from 1922-25 and then again in 1930. The son of an innkeeper, de Vreng later rented a cafe on the seafront of Amsterdam. He was also a very good amateur painter.
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1920 Summer Olympics | Cycling Track (Cycling) | NED |
Frans de Vreng | |||
| Sprint, Men (Olympic) | 3 h12 r1/6 | |||||
| Tandem Sprint, Men (Olympic) | Piet Ikelaar | 3 | Bronze | |||
| Team Pursuit, Men (Olympic) | Netherlands | 2 h3 r1/2 |
