You're All I Need is the second studio album by soul musicians Marvin Gaye and Tammi Terrell, released in August 1968 on Motown-subsidiary label Tamla Records. Highlighted by three hit singles written by Nickolas Ashford and Valerie Simpson, You're All I Need was recorded throughout 1966 and 1967 and features two Top 10 Billboard Hot 100 hits, "Ain't Nothing Like the Real Thing" and "You're All I Need to Get By". It peaked at #60 on the U.S. Billboard 200 Album Chart. You're All I Need was the two singers' final collaboration effort, as Terrell would become ill following recording, before succumbing to a brain tumor in 1970.

Thomasina Winifred Montgomery, professionally known as Tammi Terrell, was an American singer-songwriter, widely known as a star singer for Motown Records during the 1960s, notably for a series of duets with singer Marvin Gaye.