Tillandsia tenuifolia, the narrowleaf airplant, is a species in the genus Tillandsia. This species is widespread across much of South America and the Caribbean islands.

Four varieties are recognized:

1. Tillandsia tenuifolia var. disticha (L.B.Sm.) L.B.Sm. – States of Rio de Janeiro + São Paulo
2. Tillandsia tenuifolia var. saxicola (L.B.Sm.) L.B.Sm. – States of Rio de Janeiro + São Paulo
3. Tillandsia tenuifolia var. tenuifolia – most of species range
4. Tillandsia tenuifolia var. vaginata (Wawra) L.B.Sm. – Jamaica, Martinique, Brazil, Paraguay

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