R511 may refer to:
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R.511, a French air-to-air missile
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R511 (South Africa)
The R511 is a Regional Route in South Africa that connects Sandton (north of Johannesburg) with Thabazimbi via Hartbeespoort and Brits.
It is an alternative route to the R512 for travel between the Johannesburg Metropole and Brits.
Route G ...
, a road
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R511 road (Ireland)
{{disambiguation