Cylindrolobus is a genus of orchids with about 80 species that grow in New Guinea, Wallacea, Southeast Asia, southern China, and India.

The leathery leaves are alternate, conduplicate, and their shape can be linear-oblanceolate, or either narrowly elliptic or ovate.

There are 8 rectangular pollinia, arranged in pair-series, a large and a small in each pair, with the posterior 4 are much smaller.

The few-flowered, glabrous axillary inflorescence is a diagnostic trait amongst sympodial taxa in the Epidendroideae subfamily p.p.

Countries and regions that members of the taxa grow in include: New Guinea, Lesser Sunda Islands, Maluku, Sulawesi, Philippines, Borneo, Java, Sumatra, Malaya, Thailand, Cambodia, Vietnam, Laos, Myanmar, Assam, East Himalaya, India, Tibet, and South Central China.