Louis-Philippe "L. P." Dumoulin (born February 21, 1979) is a Canadian stock car racing driver.

[2] Dumoulin has participated in 5 races over 4 years in the Rolex Grand-Am Sports Car Series.

He is the younger brother of the other racing driver: Jean-François Dumoulin.

(key) (Bold – Pole position awarded by qualifying time.

Italics – Pole position earned by points standings or practice time.