Rex Howard Harrington, CC (born October 30, 1962) is a Canadian ballet dancer. Born in Peterborough, Ontario, Rex Harrington has been dancing his way across the most glamorous stages in the world since he made his debut with the National Ballet of Canada in 1983. One of the most charismatic and expressive dancers of his generation, Rex has been called "a choreographer's muse without equal".

Harrington had only started dancing and training at the age of fourteen, and from there his abilities and talents soared into a great principal ballet dancer. Upon entrance into the National Ballet School at age fourteen, it was dually noted by the choreographers and directors that Rex Harrington would never be a mere chorous dancer in the background, but that he was one to be placed in the spotlight.

During his first year at the National Ballet of Canada, Rex Harrington was already cast in a principal role opposite the prima ballerina Karen Kain in Oiseaux Exotiques. From them on, he was cast in outstanding principal roles and finally in 1988, Rex Harrington was promoted to Principal Dancer at the National Ballet of Canada. Rex Harrington and Karen Kain danced together on center stage in National Ballet of Canada productions till Kain's retirement in 1997.

Harrington's classical roles include "Romeo" in Romeo and Juliet. His Romeo has been described as "one of the greatest Romeos of his generation". Other roles have included "Basilio" in Don Quixote, "Kastchei" in The Firebird and the title role in Balanchine's Apollo. The Hamilton Spectator said of his performance in Apollo, "In many ways Harrington was born to play Apollo. With his Byronic beauty, athletic attack and still powerful control he dominates this work as previous dramatic Apollos surely have."

Constantly in demand as a guest artist, Harrington joined other company members on a three-week tour of Italy in Stars and Soloists of Canadian Ballet and in 1987 he partnered Veronica Tennant in David Allan's Khatchaturian Pas de Deux. In 1992, he performed the title role in Onegin with Alessandra Ferri at Ballet Teatro dell' Opera in Rome and Juri Kylian's Nuages with Evelyn Hart.

His artistic excellence has not gone unnoticed. Mr. Harrington was made an officer of the Order of Canada in February of 2000 and was awarded a Gemini award for the film version of The Four Seasons in 2001. Mr. Harrington even performed for Queen Elizabeth II in her Jubilee year.

In 2002, Rex Harrington was invited to perform for Queen Elizabeth II as part of her Jubilee Anniversary, which came as a great honour for the seasoned dancer. Finally in 2004, Rex Harrington retired being Principal Dancer at the National Ballet of Canada.

After an illustrious 20-year career, Mr. Harrington retired from dancing in 2004. In 2006 Mr. Harrington returned to the National Ballet as Artist-in-Residence.