Within each of the six nations, people are divided into a number of matrilineal clans. The number of clans varies by nation, currently from three to eight, with a total of nine different clan names.
| Seneca | Cayuga | Onondaga | Tuscarora | Oneida | Mohawk |
|---|---|---|---|---|---|
| Wolf (Hoñnat‘haiioñ’n‘) | Wolf | Wolf | Wolf (Θkwarì•nę) | Wolf (Thayú:ni) | Wolf (Okwáho) |
| Bear (Hodidjioiñi’’g’) | Bear | Bear | Bear (Uhčíhręˀ) | Bear (Ohkwá:li) | Bear (Ohkwá:ri) |
| Turtle (Hadiniǎ‘’děñ‘) | Turtle | Turtle | Turtle (Ráˀkwihs) | Turtle (A’no:wál) | Turtle (A’nó:wara) |
| Sandpiper (Hodi’ne`si’iu’) | Sandpiper | Sandpiper | Sandpiper (Tawístawis) | — | — |
| Deer (Hadinioñ’gwaiiu’) | — | Deer | Deer | — | — |
| Beaver (Hodigěn’’gegā’) | — | Beaver | Beaver (Rakinęhá•ha•ˀ) | — | — |
| Heron | Heron | — | — | — | — |
| Hawk | — | Hawk | — | — | — |
| — | — | Eel | Eel (Akunęhukwatíha•ˀ) | — | — |
