Louis Lincoln is a character in L.A. Noire.
Very little is known about his background, Louis appears to be the manager of either Elsa Lichtmann or of The Blue Room.
Events of L.A. Noire
Louis appears when Cole Phelps is first introduced by Roy Earle to Elsa. Harlan Fontaine is present as well and he asks Lincoln to help administer a drug to the singer.