T66 may refer to:
*
T66 (rocket launcher), an American multiple rocket launcher
*
Avions Fairey T.66 Tipsy Nipper, a Belgian aerobatic aircraft
*
Ericsson T66
Ericsson T66 is a discontinued mobile phone created by Ericsson Mobile Communications, their smallest ever. Released in September 2001, it surpassed the tiny Nokia 8210 in smallness and weight at the time. At just 59 grams, it remains as one of ...
, a mobile phone
*
Cooper T66
The Cooper T66 is a Formula One racing car from the Cooper Car Company, which was in use from 1963 to 1964.
Development history
The Cooper T66 was the Cooper Car Company's entry for the 1963 Formula One season and was a development of the previo ...
, a racing car
*
Hawker Hunter T.66, a British-built trainer aircraft
* , a patrol vessel of the Indian Navy
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