Guests will be "immersed in the ever-unfolding stories" of iconic characters from the brand.
The day-long event will be available on select seven-night voyages and will "bring to life" films such as Toy Story, Monsters, Inc., The Incredibles and Finding Nemo with themed dining, character encounters, dance parties and a musical experience.
A Pixar film festival, exclusive merchandise and photo opportunities will also be available.
The "Pixar Day at Sea" will be included on nine select Disney Fantasy cruises from January through March 2023.
Departing Port Canaveral, the vessel will sail to several destinations in the eastern and western Caribbean.
Eastern Caribbean itineraries feature stops in St Thomas and Puerto Rico, while western Caribbean sailings visit Mexico, Grand Cayman and Jamaica. Every cruise includes a visit to Disney’s private island, Castaway Cay.