Pauline Matthews (born 6 March 1947), better known by her stage name Kiki Dee, is an English singer.

She is best known for her 1976 duet with Elton John, entitled "Don't Go Breaking My Heart", which went to Number 1 both in the UK Singles Chart and the US Billboard Hot 100 chart. In 1993 she performed another duet with Elton John for his Duets album, a cover version of Cole Porter's "True Love", which reached No. 2 in the UK. During her career, Kiki Dee has released 39 singles, three EPs and 12 albums. Kiki's latest single "Sidesteppin' With A Soul Man" released in October 2013 is her 40th single release.