The company has entered into agreements with German ship builder Meyer Werft, but don't start making plans for a maiden voyage anytime soon.
Ships, which have not yet been named, are expected to be finished in 2021 and 2023, according to the announcement made Thursday.
Disney gave few details of what features the ships may have. Each will carry about 1,250 staterooms, the same as Disney Fantasy, but will be a little bit larger.
The line offer cruises to the Caribbean, Alaska, California, Mexico, Europe and other destinations.