T Carinae and t Carinae are designations referring to stars in the constellation Carina.
The Bayer designation t Carinae (t Car) is shared by two stars in the constellation Carina: t1 Carinae, a K-type giant star t2 Carinae, a binary star system with a K-type supergiant star orbited by a B-type giant star
The variable star designation T Carinae is used by the star HD 94476, which has been found to not be variable.