Joel Rosario (born January 14, 1985) is a Dominican jockey in American Thoroughbred horse racing. In the space of five weeks in 2013 he rode the winners of the Dubai World Cup and the Kentucky Derby.
On December 11, 2009, Rosario equaled a Hollywood Park Racetrack record when he won six races on a single race card. Previously, the feat had been achieved by Hall of Fame jockeys Bill Shoemaker (1953, 1970), Laffit Pincay, Jr. (1968), and Kent Desormeaux (1992).
On 30 March 2013 Rosario won the world's richest horse race, the USD10 million Dubai World Cup at Meydan Racecourse in Dubai, aboard the US-based stallion Animal Kingdom. And on 4 May 2013 he won the Kentucky Derby aboard the colt Orb.