| Puccinia sphaeroidea Henn., 1903 |
| Puccinia splendens Vize, 1878 |
| Puccinia stakmanii Presley, 1943 |
| Puccinia stipae Arthur, 1884 |
| Puccinia striiformis Westend., 1854 |
| Puccinia striiformis var. striiformis Westend., 1854 |
| Puccinia substriata Ellis & Barthol., 1897 |
| Puccinia superflua Howl., 1904 |
| Puccinia tageticola Dietel & Holw., 1897 |
| Puccinia tetramerii Seym., 1896 |
| Puccinia thaliae Dietel, 1899 |
| Puccinia thelypodii Cummins, 1939 |
| Puccinia tillandsiae Cummins & Pollack, 1974 |
| Puccinia tithoniae Dietel & Holw., 1897 |
| Puccinia tripsaci Dietel & Holw., 1897 |
| Puccinia triumfettae Dietel & Holw., 1897 |
| Puccinia trixitis (F. Kern & Kellerm.) Arthur, 1918 |
| Puccinia tumidipes Peck, 1885 |
| Puccinia tuyutensis Speg., 1881 |
| Puccinia urbaniana Henn., 1898 |