Mary Jane "M.J." Tumbridge (born 12 July 1964) is a Bermudian equestrian.

[3] She was the first sportsperson from Bermuda to win a gold medal at the Pan Am Games,[4][5] and is considered to be the best equestrian from the country.

[6] Tumbridge was born in 1964 in Bermuda and began horse riding at the age of seven.

[10] At the 2000 Summer Olympics, Tumbridge rode the horse "Bermuda's Gold", the same horse she had won her gold medal at the Pan American Games a year earlier.

[4][11] However, during the Olympics, the horse broke her left hind leg, and was euthanised.