GTS Celebrity Summit is a Millennium-class cruise ship owned and operated by Celebrity Cruises. She was built in 2001 by the Chantiers de l'Atlantique shipyard in St. Nazaire, France for Celebrity Cruises as GTS Summit. She was renamed with the "Celebrity" prefix in 2008.

Based in Bayonne, New Jersey or San Juan, her normal cruise track finds her wintering in southern Caribbean and summering at Bermuda with port calls at popular destinations such as Kings Wharf, and during the winter season she normally calls at St. Croix, St. Kitts, Dominica and Grenada, as well as St. Thomas, St. Maarten, Barbados and Antigua. When cruising to Canada and New England in fall, key ports of call are: Portland, Bar Harbor, Saint John, Halifax, Québec City and Charlottetown.

In 2012, Celebrity Summit was outfitted with Solstice-class features, and 60 new staterooms. She now weighs in at with 90,940 GT.

Ports of call

• Winter 2016-17- Caribbean sailing from San Juan
• Summer 2017- Bermuda, New England and Canada sailing from Cape Liberty
• Winter 2017-18- Caribbean sailing from San Juan
• Summer 2018- Bermuda, New England and Canada from Cape Liberty