1986 Brazilian Grand Prix

Nelson Piquet won the 1986 Brazilian Grand Prix for Williams, finishing 34.827 seconds ahead of Ayrton Senna (Team Lotus), with Jacques Laffite (Ligier) completing the podium. Ayrton Senna had taken pole position.

It was round 1 of 16 of the 1986 Formula 1 World Championship, held at Autódromo Internacional Nelson Piquet in Rio de Janeiro, Brazil on 23 March 1986.

After round 1, Nelson Piquet led the 1986 drivers' championship on 9 points, 3 ahead of Ayrton Senna. Williams led the constructors' standings on 9 points.