T. Rex is a 1970 album by Marc Bolan's band T. Rex, the first under that name and the fifth since their debut as Tyrannosaurus Rex in 1968. It was released on 18 December by record labels Fly and Reprise. The album continued the shift begun by its predecessor from the band's previous folk style to a minimal rock sound, with an even balance of electric and acoustic material.

Marc Bolan was an English guitarist, singer-songwriter and poet. He was a pioneer of the glam rock movement in the early 1970s with his band T. Rex. Bolan strongly influenced artists of many genres, including glam rock, punk, post-punk, new wave, indie rock, Britpop and alternative rock. He was posthumously inducted into the Rock and Roll Hall of Fame in 2020 as a member of T. Rex.