Diana Ross & the Supremes: Greatest Hits (also released as The Supremes: Greatest Hits) is a two-LP collection of singles and B-sides recorded by the Supremes, released by Motown in August 1967 (see 1967 in music). The collection was the first LP to credit the group under the new billing "Diana Ross & the Supremes". Although founding member Florence Ballard is pictured on all album artwork and sings on all the tracks, by the time the set was released, she had been fired from the group and replaced by Cindy Birdsong.
It would rank as their second number one album, holding a distinction that would take decades for another female group to achieve. The 2-LP set topped the Billboard Top LPs chart for 5 consecutive weeks, spending 20 weeks in the top 5 and 24 weeks total in the top 10. It remained on the chart for 89 weeks. By December 28, 1968, the album had raised more than $3 million in sales. Greatest Hits spent three weeks at number one on the UK Albums Chart. In 2018, the Official Charts Company published that the album had a total of 60 weeks in the UK top 40; making it the 4th "longest-reigning Top 40 girl group album ever".