Helmut Niedermayr (29 November 1915 in Munich – 3 April 1985 in Christiansted, US Virgin Islands) was a racing driver from Germany. He participated in one World Championship Grand Prix, on 3 August 1952, scoring no championship points.
Niedermayr finished second with Theo Helfrich at the 1952 24 Hours of Le Mans, but a few weeks later he crashed into the crowd during a race at the Grenzlandring, killing at least 13 spectators and injuring 42.
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
! Helmut Niedermayr
! AFM 6
! BMW Straight-6
| SUI
| 500
| BEL
| FRA
| GBR
|style="background:#CFCFFF;"| GER<br />
| NED
| ITA
! NC
! 0
|}