Which husband-and-wife songwriting team wrote "Ain't No Mountain High Enough"?

The husband-and-wife songwriting team who wrote “Ain’t No Mountain High Enough” was Ashford & Simpson, consisting of Nickolas Ashford and Valerie Simpson. They wrote the song in 1966 before becoming one of Motown’s best-known creative partnerships.

The composition was first recorded as a major hit by Marvin Gaye and Tammi Terrell, whose 1967 version became a signature Motown duet. The song later became an even bigger pop success when Diana Ross recorded a dramatically expanded version in 1970; that rendition became her first solo number-one single on the Billboard Hot 100.

Ashford and Simpson’s Motown work also included “Your Precious Love,” “Ain’t Nothing Like the Real Thing,” and “You’re All I Need to Get By.” Their partnership extended beyond songwriting: they performed together and released records as artists, including the later hit “Solid.” The other options are real songwriting teams, but they are associated with different catalogs and did not write this song.