"Say You, Say Me" is a song written and recorded by Lionel Richie for the film White Nights, starring Mikhail Baryshnikov and Gregory Hines.The single hit number 1 in the US and on the R&B singles chart in December 1985. It became Richie's ninth number-one on the Billboard Adult Contemporary chart. The track is not available on the film's soundtrack album, as Motown did not want Richie's first single following the massive success of his 1983 album Can't Slow Down to appear on another label. It was included by Motown on Richie's 1986 release Dancing on the Ceiling.

The track won an Academy Award for Best Original Song and a Golden Globe Award for Best Original Song. A music video was made for the song that featured inserted clips from White Nights.

In 2008, the song was ranked at number 74 of the top songs of all time on the Billboard Hot 100 chart, commemorating the first 50 years of the chart.

The single was hugely successful in South Africa, attaining the No. 1 spot on the weekly charts and remaining thereon for a total of 30 weeks. It eventually became the No. 1 single of 1986 on that country's year-end Springbok charts.