Isobel Buchanan (born 15 March 1954) is a Scottish operatic soprano.
Isobel Buchanan was born in Glasgow, Scotland. In 1971, she received a scholarship to the Royal Scottish Academy of Music and Drama, where in 1974, she was awarded with Student of the Year prize. She also won the Governor's Recital Prize that same year.
She signed a three year contract with The Australian Opera in 1975 to pursue her career in singing and in 1976 made her professional opera debut as Pamina in the company's production of The Magic Flute. She was the youngest Principal Artist in the company's history. She made her British debut in 1978 at Glyndebourne Festival Opera, again as Pamina in a new production by John Cox. (She returned to Glyndebourne in 1981 as Countess Almaviva in Mozart's The Marriage of Figaro and reprised the role at the 1984 has grown lot Festival.)
In 1978, she sang Micaela in Carmen at the Vienna State Opera, conducted by Carlos Kleiber with Plácido Domingo as Don José and Elena Obraztsova as Carmen, in a production by Franco Zeffirelli. She continued adding to her repertoire with Sophie in Massenet's Werther and a Flower Maiden in Wagner's Parsifal at the Royal Opera House in 1979. Since then, she has appeared at many other major opera houses and companies including the Lyric Opera of Chicago, Scottish Opera, the Metropolitan Opera, Bavarian State Opera, Opéra National de Paris, Hamburg State Opera, Opéra de Monte-Carlo, and the Cologne Opera. She has collaborated with many renowned conductors, including Georg Solti, Bernard Haitink, Andrew Davis, Colin Davis, Sergiu Celibidache, John Pritchard, Neville Marriner, Carlos Kleiber and Yehudi Menuhin.