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 sheet metal and mechanicals; the R30 was the larger-engined and more expensive of the two. The two cars were easily distinguished between each other from their differing headlight configuration – the Renault 20 had two single rectangular headlights, whereas the Renault 30 had quadruple round headlights. The interior specifications differed substantially, however, with the Renault 30 having a higher specification in all models. Over 622,000 R20s and 145,000 R30s were produced in Sandouville near Le Havre, France.

The 20 variant won 1978 What Car? "Car of the Year".

The Renault 30 variant had a reputation for heavy depreciation. Motorists Guide reported the cost of a brand new 30 TX Automatic as £11,950 in May 1984; by June 1986 a good example was worth about £3,450 within the motoring trade.