| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Weiseria J. M. Doby & Saguez 1964 | 0 | 1 | 0 |
| Wenrichia | 0 | 1 | 0 |
| Wenyonella | 0 | 1 | 0 |
| Wigwamma I. Manton, J. Sutherland & K. Oates 1977 | 0 | 1 | 0 |
| Vahlkampfiidae | 0 | 5 | 0 |
| Willkommlangea | 0 | 1 | 0 |
| Wittmannia R. Czaker 1997 | 0 | 1 | 0 |
| Woloszynskia Thompson 1951 | 0 | 1 | 0 |
| Wolskana Ito, Imai, Ogimoto & Nakahara 1996 | 0 | 1 | 0 |
| Woodruffia Kahl 1931 | 0 | 1 | 0 |
| Woodruffia rostrata Kahl 1931 | 0 | 1 | 0 |
| Woodruffiidae | 0 | 1 | 0 |
| Woodsia | 0 | 1 | 0 |
| Woronina | 0 | 1 | 0 |
| Xenophyophorea | 0 | 1 | 0 |
