The guns and ammunition were found when the luggage was put through an X-ray machine "during a routine security screening checkpoint at one of our hotels," Disneyland Paris representative Francois Banon said.
"The police were immediately notified and the individual was arrested," Banon said.
The Paris area has been on edge since two high-profile Islamist attacks last year: the killings of 17 people at the office of satirical magazine Charlie Hebdo and a kosher supermarket in Paris in January 2015, and the massacre of 130 people in shootings and suicide bombing in and near Paris in November.
Disneyland Paris is about 30 kilometers (19 miles) east of central Paris.
/By CNN/