Karen Alexandria Kain is a Canadian former ballet dancer and was the Artistic Director of the National Ballet of Canada from 2005 to 2021.

The National Ballet of Canada is a Canadian ballet company that was founded in 1951 in Toronto, Ontario, with Celia Franca, the first artistic director. A company of 70 dancers with its own orchestra, the National Ballet has been led since 2022 by artistic director Hope Muir. Renowned for its diverse repertoire, the company performs traditional full-length classics, embraces contemporary work and encourages the creation of new ballets, as well as the development of Canadian dancers and choreographers.