In order to make things more distinct and not be a mere copy of the original, modifications were made to the park's concepts and designs. Among the changes was the change of Tomorrowland to Discoveryland, giving the area a retrofuturistic theme. Other altered elements include the Haunted Mansion, which was redesigned as Phantom Manor and a retro, more intense version of Space Mountain (now Hyperspace Mountain). The park's location brought forth its own challenges. Sleeping Beauty Castle (Le Château de la Belle au Bois Dormant) is said by its designers to have been necessarily reevaluated for a continent on which authentic castles stand. Modifications to the park were made to protect against changes in weather in the Parisian climate. Covered walkways referred to as "arcades" were added, and Michael Eisner ordered the installation of 35 fireplaces in hotels and restaurants.

The park, as well as its surrounding complex, initially failed to meet financial expectations, resulting in an image change in which the word "Euro" was phased out of several names, including Euro Disney. The park was known as Euro Disney until May 1994, Euro Disneyland Paris until September 1994, Disneyland Paris until February 2002, and Disneyland Park (English) and Parc Disneyland (French) since March 2002.

Michael Eisner noted, "As Americans, the word 'Euro' is believed to mean glamorous or exciting. For Europeans it turned out to be a term they associated with business, currency, and commerce. Renaming the park 'Disneyland Paris' was a way of identifying it with one of the most romantic and exciting cities in the world."

On 14 March 2020, Disneyland Park, alongside the Walt Disney Studios Park, was temporarily closed due to the ongoing COVID-19 pandemic. Both parks remained closed for four months, resuming operations on 15 July with strict rules such as limited guest attendance, social distancing, and mandatory wearing of face masks. The park closed again on 29 October 2020 following a second nationwide lockdown. The park reopened on 17 June 2021.