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Genus of orchids

Automatic taxobox
| image = Vanda coerulea Orchi 6052. jpg
| image caption = Vanda coerulea
| display parents = 3
| taxon = Vanda
| authority = Gaud. ex Pfitzer
| type species = Vanda roxburghii R. Br. | synonyms ref = is a genus in the orchid family, Orchidaceae. There are 90 species, Vanda species are widespread across East Asia, Southeast Asia, and New Guinea, with a few species extending into Queensland and some of the islands of the western Pacific.

The generic name Vanda is derived from the Sanskrit (वन्दाका) name for the species Vanda roxburghii (a synonym of Vanda tessellata).

These mostly epiphytic, but sometimes lithophytic or terrestrial orchids, are distributed in India, Himalaya, Southeast Asia, Indonesia, the Philippines, New Guinea, southern China, and northern Australia.

The genus has a monopodial growth habit with flat, typically broad, ovoid leaves (strap leaves). Species with cylindrical (terete), fleshy leaves, which are adapted to dry periods were transferred to the genus Papilionanthe. The stems of these orchids vary considerably in size; some are miniature plants and some have a length of several meters. The plants can become quite massive in habitat and in cultivation, and epiphytic species possess very large, rambling aerial root systems. The roots have pneumatodes. The few to many flattened flowers grow on a lateral inflorescence. Most show a yellow brown color with brown markings, but they also appear in white, green, orange, red, and burgundy shades. The lip has a small spur. Vanda species usually bloom every few months and the flowers last for two to three weeks.

Vanda falcata has been reported to be pollinated by several hawkmoth species of the genus Theretra, namely Theretra japonica and Theretra nessus.

Many Vanda orchids (especially V. coerulea) are endangered, and have never been common because they are usually only infrequently encountered in habitat and grow only in disturbed forest areas with high light levels, and are severely threatened and vulnerable to habitat destruction. If cutting tools are not sterilized the infection may spread to other plants.

In a recent molecular study of the genus Vanda , several Genera including the former Genus Ascocentrum, Neofinetia and Euanthe were brought into synonym with Vanda.