Mentor Ralph Williams (June 11, 1946 – November 16, 2016) was an American songwriter and producer, renowned for his work in the country music genre. Born in Omaha, Nebraska, Williams was the brother of the esteemed songwriter and actor Paul Williams. He is best known for writing the classic song "Drift Away," initially performed by Mike Berry in 1972 and popularized by Dobie Gray in 1973. The song has been covered by numerous artists over the years, including a notable version by Uncle Kracker in 2003.

Williams also co-wrote the hit song "When We Make Love," recorded by the country band Alabama in 1984. Throughout his career, he worked with various artists and produced music for labels such as A&M, MCA, RSO, and Columbia Records. His collaborations included working with notable figures like Paul McCartney and Kenney Jones at The Record Plant, and with Stealers Wheel and Gerry Rafferty at Apple Studios in London.

In addition to his songwriting accomplishments, Williams contributed to film music, working on projects like The Muppet Movie and the soundtrack for Butch Cassidy and the Sundance Kid. He received numerous awards for his songwriting, including recognition from ASCAP for his 30-year career.

Williams resided in Taos, New Mexico, where he lived with country singer Lynn Anderson until her death in 2015. He was committed to nurturing new talent, conducting songwriting seminars and lectures at the college level. Mentor Williams passed away from lung cancer at the age of 70 in his Taos home.