On Sunday morning, a technician in the Haunted Mansion attraction, Phantom Manor, was discovered dead by his colleagues, between 8 and 9 a.m.
It's believed that the 45-year-old man had been electrocuted while trying to make a repair in the Phantom Manor. The ride remains closed for police investigation.
The man had worked at Disneyland Paris since 2002. His name has not been disclosed to the public, but his fellow employees offered kind words, saying he "always had a smile on his face."
A Disneyland representative told Newsbeat:
"We are truly saddened to learn of the passing of one of our Cast Members, and our hearts go out to his family and friends during this very difficult time."
The ride is expected to reopen on Wednesday.
This is the first tragedy at the park since 2010, when a 53-year-old park employee became trapped under a boat in the Small World ride and died.
Disneyland Paris is one of the most famous European tourist destinations, with over 15 million people visiting the park in 2015.