María Cristina Kiehr (born in Tandil, Argentina) is a soprano vocalist associated with Baroque music. After receiving her early musical training in Argentina, she moved in 1983 to Europe and studied under René Jacobs at the Schola Cantorum Basiliensis, specializing in the Baroque repertoire.

Her recording of Maddalena ai Piedi di Cristo with René Jacobs won a Grammy award in 1997.[3]

Her voice is especially suited to performing the work of neglected Italian female composers of the Early Baroque such as Barbara Strozzi and Francesca Caccini. Though she is known as a champion of little known works and composers, she is also sought after for her interpretations of Henry Purcell and Claudio Monteverdi.