John Gray is an American author renowned for his contributions to the field of relationships and personal growth. He rose to prominence with his 1992 book Men Are from Mars, Women Are from Venus, which has been celebrated for its insights into the complexities of male and female communication and relationships. Gray has authored several other "pop psychology" books offering practical advice on relationships.

Prior to his fame as an author, Gray was married to fellow self-help author Barbara De Angelis. The couple parted ways in 1984, and Gray has since found love again with Bonnie Gray, with whom he shares three daughters. His prolific work in the domain of personal development and relationship advice continues to impact and inspire many around the globe.