R46 or R-46 may refer to:

Roads

R46 expressway (Czech Republic) D46 motorway ( cs, Dálnice D46), formerly Expressway R46 ( cs, Rychlostní silnice R46) is a highway in southern Czech Republic. It was built from 1974 to 1992. Currently, as the D1 highway is not finished yet, it carries all international traf ...

, now the D46 motorway *

R46 (South Africa) The R46 is a provincial route in Western Cape, South Africa that connects Malmesbury with Touws River, via Riebeek-Kasteel, Tulbagh and Ceres. The R46 is co-signed with the R44 between Gouda and Hermon in the Berg River The Berg River (als ...

Other uses

R-46 (missile) The R-46 was an intercontinental ballistic missile (ICBM) design by the Soviet Union during the Cold War. The R-46 concept was to launch a very large hydrogen bomb into orbit as a fractional orbital bombardment system (FOBS). The existence of t ...

, a Soviet intercontinental ballistic missile *

R46 (New York City Subway car) The R46 is a New York City Subway car model that was built by the Pullman Company, Pullman Standard Company from 1975 to 1978 for the Independent Subway System, IND/Brooklyn–Manhattan Transit Corporation, BMT B Division (New York City Subway) ...

Escadrille R46 ''Escadrille 46'' (variously known as ''Escadrille R46'' and ''Escadrille Let46'') was a highly decorated French World War bombing squadron. Although serving ordinarily as a reconnaissance and bombardment role, they also flew as gunships to escort ...

, a unit of the French Air Force * R46: May cause heritable genetic damage, a risk phrase {{Letter-NumberCombDisambig