Dagmar Koller is an Austrian soprano, dancer, and actor. She began a professional career at age 16 as a ballet student at the Wiener Volksoper and achieved a breakthrough in 1964 as Princess Mi in the operetta Land des Lächelns. In 1964, she toured the United States and Canada with the production Wiener Blut. Koller is famous for her work in musicals, notably portraying the role of Aldonza in the German-language premiere of Der Mann von La Mancha. Her stage roles include Eliza in My Fair Lady, Kate in Kiss me, Kate, and Dolly in Hello, Dolly!. In 1979, she appeared in the television production Komm in den Park von Sanssouci - Dagmar Koller singt Robert Stolz. She received the Großes Ehrenzeichen für Verdienste um die Republik Österreich in 2015.
