The Czech State Veterinary Administration reported its findings to the European Union's Rapid Alert System for Food and Feed.
The inspectors took samples for DNA tests in IKEA's unit in the city of Brno from a product labelled as "beef and pork meatballs", a statement said.
It added that the consignment of meatballs that was tested had not been distributed to consumers.
A spokesman for the institute said he did not know whether the meatballs were distributed in other European countries.
IKEA said they were made by a single Swedish supplier.
More top news
An airline safety video features orcs in oxygen masks, elves for flight attendants and epic battlefield scenes.
TV presenters Richard Madeley and Judy Finnigan say they have made a formal complaint after their daughter received rape threats.
The Chuckle Brothers are hoping their song with grime artist Tinchy Stryder will become a hit.