"You're All I Need to Get By" is a song recorded by the American R&B/soul duo Marvin Gaye and Tammi Terrell and released on Motown Records' Tamla label in 1968. It was the basis for the 1995 single "I'll Be There for You/You're All I Need to Get By" from Method Man and Mary J. Blige.

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.