Peggy Carr may refer to: Peggy Carr (born c. 1955), Taiwan-based Vincentian journalist, poet, and diplomat Peggy G. Carr, American expert on educational assessment Peggy Carr, president of Illinois Birth Control League in 1940s Peggy Carr (died 1988 in Florida), victim of thallium poisoning Peggy Carr, fictional thallium poisoning victim in Agatha Christie mystery novel The Pale Horse (1961) Peggy Carr, fictional character in Ring Two (1939) played by Broadway actress Gene Tierney