André Ernest Paul Lagache (21 January 1885 – 2 October 1938)[1] was a French racing driver who, along with René Léonard, won the inaugural 24 Hours of Le Mans in 1923.

[2] Lagache and Léonard were engineers at automobile manufacturer Chenard et Walcker, and were chosen to drive their "Sport" model in the inaugural 24 Hours of Le Mans.

The duo drove a distance of 2,209 km (1,373 mi) over 24 hours and beat another Chenard-Walcker by a four lap margin.

Lagache continued to run Le Mans for Chenard et Walcker for the next two years, but was unable to finish the event again.

Lagache also raced a Chenard-Walcker in the inaugural Spa 24 Hours in 1924, finishing second alongside André Pisart.