R20 may refer to:

Roads

Small Ring, Brussels The Small Ring (, ; , ) inner ring road, formally R20 and N0, is a series of roadways in central Brussels, Belgium, surrounding the historic city centre. The city centre is usually defined as the area within the Small Ring; this area is call ...

, a ring road in Belgium

Other uses

Chloroform Chloroform, or trichloromethane (often abbreviated as TCM), is an organochloride with the formula and a common solvent. It is a volatile, colorless, sweet-smelling, dense liquid produced on a large scale as a precursor to refrigerants and po ...

, a refrigerant * , a destroyer of the Royal Canadian Navy and Royal Navy * R20: Harmful by inhalation, a risk phrase * R20 battery, a dry cell battery *

R20 Regions of Climate Action The R20 – Regions of Climate Action is a non-profit organization, non-profit environmental organization founded in September 2011, by former governor of California, Arnold Schwarzenegger, with the support of the United Nations. R20 is a coalition ...

, a nonprofit environmental organization * R20 series, preferred numbers in industrial design *

Renault 20 The Renault 20 ''(R20)'' and Renault 30 ''(R30)'' are two executive cars produced by the French automaker Renault between 1975 and 1984. The most upmarket and expensive Renaults of their time, the two cars were almost identical with regard to she ...

, a French executive car * Small nucleolar RNA R20 * The LMT R-20 Rahe is an assault rifle of

EDF EDF may refer to: Organisations * Eclaireurs de France, a French Scouting association * Électricité de France, a French energy company ** EDF Energy, their British subsidiary ** EDF Luminus, their Belgian subsidiary * Environmental Defense Fund, ...

made by LMT *

Toyota TownAce (R20) The Toyota LiteAce and TownAce are a line of light commercial and derivative passenger vans produced by the Japanese car manufacturer Toyota. These vehicles originally utilized the cab-over-engine configuration, although since 1996 a semi-cab ...

, a Japanese van * , a 1918 submarine of the United States Navy {{Letter–number combination disambiguation