| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 301 | Segenam | NativeAmerican | Lazy (Algonquin). | M | |
| 302 | Sewati | NativeAmerican | Curved bear claw (Miwok). | M | |
| 303 | Shilah | NativeAmerican | Brother (Navajo). | M | |
| 304 | Shiriki | NativeAmerican | Coyote (Pawnee). | M | |
| 305 | Shishiesh | NativeAmerican | Variant of Ashishishe: Crow name for crow. | M | |
| 306 | Shiye | NativeAmerican | Son (Navajo). | M | |
| 307 | Shizhe'e | NativeAmerican | Father (Navajo). | M | |
| 308 | Shoemowetochawcawe | NativeAmerican | High backed wolf (Cheyenne). | M | |
| 309 | Sicheii | NativeAmerican | Grandfather (Navajo). | M | |
| 310 | Sik'is | NativeAmerican | Friend (Navajo). | M | |
| 311 | Sike | NativeAmerican | He sits at home (Navajo). | M | |
| 312 | Sikyahonaw | NativeAmerican | Yellow bear (Hopi). | M | |
| 313 | Sikyatavo | NativeAmerican | Yellow rabbit (Hopi). | M | |
| 314 | Siwili | NativeAmerican | Tail of the fox. | M | |
| 315 | Skah | NativeAmerican | White (Sioux). | M | |
| 316 | Songaa | NativeAmerican | Strong. | M | |
| 317 | Sowi'ngwa | NativeAmerican | Black - tailed deer (Hopi). | M | |
| 318 | Sucki | NativeAmerican | Black (Algonquin). | M | |
| 319 | Sunukkuhkau | NativeAmerican | He crushes (Algonquin). | M | |
| 320 | T'iis | NativeAmerican | Cottonwood (Navajo). | M | |