| Tillandsia sparsiflora Baker, 1890 |
| Tillandsia spinosa Sessé & Moc., 1894 |
| Tillandsia staticeflora E. Morren, 1871 |
| Tillandsia strobilantha Baker, 1888 |
| Tillandsia strobilifera E. Morren ex Baker, 1889 |
| Tillandsia subimbricata Baker, 1887 |
| Tillandsia sublaxa Baker, 1887 |
| Tillandsia subulata E. Morren ex Baker, 1889 |
| Tillandsia sueae Ehlers, 1991 |
| Tillandsia teloloapanensis Ehlers & Lautner, 2009 |
| Tillandsia tenuifolia L., 1753 |
| Tillandsia tephrophylla Harms, 1929 |
| Tillandsia tephrophylla var. guzmanioides (L.B. Sm.) Rohweder, 1956 |
| Tillandsia tomasellii De Luca, Sabato & Balduzzi, 1979 |
| Tillandsia tortilis Brongn. ex E. Morren, 1887 |
| Tillandsia tortilis Klotzsch ex Baker, 1887 |
| Tillandsia tortilis subsp. curvifolia Ehlers & Rauh, 1990 |
| Tillandsia tortilis subsp. tortilis Klotzsch ex Baker, 1887 |
| Tillandsia trichoides Kunth, 1815 |
| Tillandsia tridactylites E. Morren ex Baker, 1889 |