Nikos Psacharopoulos was a Greek-American theater producer, director, and educator.
Born Nickolas Konstantin Athanasios Psacharopoulos VII, he claimed to have organized his first theatrical troupe at age 15 under the Nazi occupation of his homeland. He moved to the United States in 1947 and attended Oberlin College where he directed productions for the Oberlin Mummers. He graduated in 1951 with a degree in art history. Three years later he received a Master of Fine Arts Degree in theater direction from the Yale Drama School. In 1955, he joined the faculty of Yale's undergraduate theater studies department and also taught in the graduate Drama School, where he remained until his death from colon cancer at age 60.
Psacharopoulos was a co-founder of the Williamstown Theater Festival in 1955, based in the Adams Memorial Theater on the campus of Williams College. Psacharopoulos went on to serve as WTF's sole artistic executive director for 33 years, creating a professional summer theater that was more than a typical summer stock escapist operation. He was aided for many years by Tom Brennan, who served as the WTF associate director.