The 24-year-old actress and 22-year-old Oxford University student had been dating for a year before they went their separate ways a month ago.
Watson's spokesperson confirmed the news to the Daily Mail and added that the pair have remained "amicable" since their split.
Emma and Matthew, who is a one of the university's top rugby players, often spent time apart because of their conflicting professional and personal commitments.
- Emma Watson (@EmWatson) May 25, 2014
The couple started dating at the end of 2013 were first seen together on holiday in the Caribbean in January.
"They didn't have a care in the world," a source told the Mirror at the time. "Matt was very protective of Emma, often putting his arm around her.
"He was being a gentleman the whole time. He is clearly very much into her. They couldn't stop giggling and smiling the whole time."
Sadly, it wasn't meant to be - but we don't think Emma will have any problem trying to find an eligible bachelor to take her on a date. Harry Styles, perhaps?
See more of the Harry Potter star below: