| Ipomoea heptaphylla Voigt, 1845 |
| Ipomoea heterodoxa Standl. & Steyerm., 1944 |
| Ipomoea hintonii L.O. Williams, 1970 |
| Ipomoea hirsutula J. Jacq., 1813 |
| Ipomoea hirta M. Martens & Galeotti, 1845 |
| Ipomoea ignava House, 1908 |
| Ipomoea igualensis Weath., 1910 |
| Ipomoea imperati (Vahl) Griseb., 1866 |
| Ipomoea indica (Burm.) Merr., 1917 |
| Ipomoea indica var. variabilis (Schltdl. & Cham.) L.O. Williams, 1970 |
| Ipomoea intrapilosa Rose, 1894 |
| Ipomoea invicta House, 1908 |
| Ipomoea iodantha Brandegee, 1913 |
| Ipomoea jacalana Matuda, 1965 |
| Ipomoea jalapa (L.) Pursh, 1813 |
| Ipomoea jicama Brandegee, 1889 |
| Ipomoea kahloae Gonz.-Martínez, Lozada-Pérez & Rios-Carr., 2018 |
| Ipomoea kruseana Matuda, 1966 |
| Ipomoea laeta A. Gray, 1887 |
| Ipomoea lambii Fernald, 1895 |