The participants, dressed as small blue characters with white hats and pants, nearly doubled the previous record during the event at the Oceana nightclub in Swansea, which was organized by the costume shop Jokers' Masquerade, The Daily Telegraph reported Tuesday.
Organizers said the event eclipsed a previous record of 1,253 people in Smurf costumes at a Castleblayney, Ireland, event.
"Smurf Guinness World Record holder has become an illustrious title," said Rebecca Oatley of Jokers' Masquerade. "There have been five attempts over the last 18 months, with Swansea trumping Castleblayney's 1,253 Smurfs recorded last year. We knew that if we were going to break the record, we had to do it in style and 2,510 Smurfs will be a tough act to follow for any budding record-breakers."
"This is just the beginning of our world record run. We are hoping to set, break and smash Guinness World Records for iconic characters from Daleks to Superheroes. Watch this space."