T55 may refer to:

• de Havilland Vampire T.55, a British-built trainer
• English Electric Lightning T.55, a British-built trainer
• Honeywell T55, a turboshaft engine
• Slingsby T.55 Regal Eagle, a British record-setting glider

• T-55, a Soviet tank
• Bestune T55, a Chinese crossover utility vehicle
• Cooper T55, a Formula One racing car
• Utility Vehicle, Tracked, Infantry, T55, an American prototype armored personnel carrier

This disambiguation page lists articles associated with the title T55.
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