Johannes Leonardus "Jan" Flinterman (2 October 1919 – 26 December 1992) was a Dutch Royal Air Force pilot during World War II and a racing driver. Together with Dries van der Lof, he was the first driver from the Netherlands to compete in Formula One.
thumb|left|Flinterman in the Maserati he drove at the 1952 Dutch Grand Prix
Flinterman participated in one World Championship Grand Prix, the 1952 Dutch Grand Prix on 17 August 1952. When he had to retire his Maserati with a failure of the rear axle, he was able to take over the similar car of his team mate, Chico Landi. Flinterman finished the race in ninth place, scoring no championship points.
Flinterman died in Leiden in December 1992.
Complete Formula One World Championship results
(key)
{| class="wikitable" style="text-align:center; font-size:90%"
! Year
! Entrant
! Chassis
! Engine
! 1
! 2
! 3
! 4
! 5
! 6
! 7
! 8
! WDC
! Points
|-
| 1952
! Escuderia Bandeirantes
! Maserati A6GCM
! Maserati Straight-6
| SUI
| 500
| BEL
| FRA
| GBR
| GER
|style="background:#CFCFFF;"| NED<br><small>9 *</small>
| ITA
! NC
! 0
|}
:<nowiki>*</nowiki> Indicates shared drive with Chico Landi
Military decorations
- x25px Officer of the Order of Orange-Nassau
- x25px Airman's Cross
- x25px War Commemorative Cross
- x25px Distinguished Flying Cross
- x25px 1939–1945 Star
- x25px France and Germany Star
- x25px Defence Medal
- x25px War Medal 1939–1945