| Pleurothallis gelida Lindl., 1841 |
| Pleurothallis ghiesbreghtiana A. Rich. & Galeotti, 1845 |
| Pleurothallis ghiesbreghtiana var. cleistogama L.O. Williams, 1951 |
| Pleurothallis glandulosa Ames, 1923 |
| Pleurothallis gnomonifera Ames, 1923 |
| Pleurothallis gonioglossa Schltr., 1923 |
| Pleurothallis grobyi Bateman ex Lindl., 1836 |
| Pleurothallis guadalupensis Cogn., 1909 |
| Pleurothallis haberi Luer, 2002 |
| Pleurothallis hagsateri Luer, 1977 |
| Pleurothallis halbingeriana R.E. Schult., 1941 |
| Pleurothallis hartwegiifolia H. Wendl. & Kraenzl., 1900 |
| Pleurothallis hastata Ames, 1908 |
| Pleurothallis herrerae Luer, 1991 |
| Pleurothallis hieroglyphica Ames, 1908 |
| Pleurothallis hintonii L.O. Williams, 1940 |
| Pleurothallis hirsuta Ames, 1908 |
| Pleurothallis homalantha Schltr., 1923 |
| Pleurothallis hondurensis Ames, 1924 |
| Pleurothallis immersa Linden & Rchb. f., 1855 |