The Ligier JS19 was a racecar which was designeed by Michel Beaujon and Jean-Pierre Jabouille. It raced during the 1982 season of Formula One.

The cars made their first appearance at the 1982 Monaco Grand Prix. The first car being driven by Eddie Cheever was retired from the race die to engine failure, (he started 16th on the grid). The second car was driven by Jaques Laffite and his car was retired from the race due to handling issues, (he started 18th on the grid).

The JS19s were fitted with a Matra MS81 V12 engine and rode on Michelin tyres. The chassis was of an aluminium riveted design. The cars weighed 590 kg and were fitted with a Talbot-Ligier/Hewland gearbox.

The cars were not very successful throughout their career due to a number of mechanical problems.