| Hansfordia pulvinata (Berk. & M. A. Curtis) S. Hughes, 1958 |
| Harpographium Sacc., 1880 |
| Harpographium congestum (Berk. & Broome) Deighton, 1974 |
| Healyum Jensen, 2001 |
| Healyum harenamica Jensen, 2001 |
| Healyum pulvis Jensen, 2001 |
| Heliocephala V. Rao, K. A. Reddy & de Hoog, 1984 |
| Heliocephala triseptata Heredia, R. F. Castañeda & Unter., 2011 |
| Hemibeltrania Piroz., 1963 |
| Hemibeltrania cinnamomi (Deighton) Piroz., 1963 |
| Hemileia Berk. & Broome, 1869 |
| Hemileia vastatrix Berk. & Broome, 1869 |
| Henicospora P. M. Kirk & B. Sutton, 1980 |
| Henicospora minor P. M. Kirk & B. Sutton, 1980 |
| Hermatomyces Speg., 1910 |
| Hermatomyces amphisporus R.F. Castañeda & Heredia, 2000 |
| Hermatomyces sphaericus (Sacc.) S. Hughes, 1953 |
| Hermatomyces tucumanensis Speg., 1911 |
| Heterocyphelium Vain., 1927 |
| Heterocyphelium leucampyx (Tuck.) Vain., 1927 |