The IV Circuit du Lac was a Formula Two motor race held on 8 June 1952 at the Aix-les-Bains Circuit du Lac, France.

The race was run over two heats each of 40 laps, with the winner being decided by aggregate time.

The winner was Jean Behra in a Gordini Type 16, who started from pole in both heats, won both heats and set overall fastest lap.

Lance Macklin was second in an HWM-Alta and Emmanuel de Graffenried third in a Maserati 4CLT/48.

Behra's teammate Robert Manzon set fastest lap in heat 1, but succumbed to mechanical failure in heat 2.