The Mentor Philosophers was a series of six books each covering a period of philosophical thought, published by the New American Library. Each book was edited by an esteemed contemporary philosophy academic and contained analysis of a group of philosophers from a chosen period.

The series was very influential during the 1950s and 1960s, and was considered innovative, in its time, for "expanding...the realm of serious reading" available in a paperback-book format^[1]. Literary historian Gilbert Highet called it a "very important and interesting series".