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Vigilant (1790s Baltimore schooner), an American schooner that carried the mail and passenger traffic in the Danish West Indies for 130 years •
Vigilant (S 618), a French Navy ballistic missile submarine •
Vigilant (yacht), an American yacht, the winner of the 1893 America's Cup yacht race •
CGS Vigilant, a Canadian armed third-class cruiser and Great Lakes fisheries protection vessel •
HMC Vigilant, a British customs cutter of HM Customs and Excise •
HMRC Vigilant, two ships and a number of cutters of the British HM Customs and Excise •
HMS Vigilant, a number of ships of the British Royal Navy • HSV
Vigilant (JHSV-2), a ship of the United States Navy-led joint high-speed vessel program, later renamed • , more than one ship of the United States Coast Guard • , more than one ship of the United States Revenue-Marine and United States Revenue Cutter Service • , more than one ship of the United States Navy •
Vigilant (Alexandria fireboat), operated by the
Alexandria Fire Department ==Other==