Barbara Ruth Dickson OBE (born 27 September 1947) is a Scottish singer and actress whose hits include "I Know Him So Well" (a chart-topping duet with Elaine Paige), "Answer Me" and "January February". Dickson has placed fifteen albums on the UK Albums Chart from 1977 to date, and had a number of hit singles, including four which reached the top 20 on the UK Singles Chart. The Scotsman newspaper has described her as Scotland's best-selling female singer in terms of the numbers of hit chart singles and albums she has achieved in the UK since 1976.

She is also a two-time Olivier Award-winning actress, with roles including Viv Nicholson in the musical Spend Spend Spend, and was the original Mrs. Johnstone in Willy Russell's long-running musical Blood Brothers. On television she starred as Anita Braithwaite in Band of Gold.