Starting with letter S
| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 341 | Seabert | English | Glory at sea. | M | |
| 342 | Seabright | English | Glory at sea. | M | |
| 343 | Seabroc | English | From the brook by the sea. | M | |
| 344 | Seabrook | English | From the brook by the sea. | M | |
| 345 | Seaburt | English | Glory at sea. | M | |
| 346 | Seadon | English | From the hill by the sea. | M | |
| 347 | Seafra | Irish | Peace from God. | M | |
| 348 | Seafraid | Irish | Peace from God. | M | |
| 349 | Seager | English | Seaman. | M | |
| 350 | Seaghda | Irish | Majestic. | M | |
| 351 | Sealey | English | From the happy meadow. | M | |
| 352 | Seamere | Anglo-Saxon | Tailor. | M | |
| 353 | Seamus | English | Variant of James: Supplant. Replace. Variant of Jacob derived from the latin Jacomus. | M | |
| 354 | Seamus | Gaelic | Form of James. Supplanter. | M | |
| 355 | Seamus | Irish | Variant of Shamus (Irish variant of James: supplanter). | M | |
| 356 | Sean | Irish | Irish variant of John: God is gracious; gift from God. | M | |
| 357 | Seanachan | Irish | Wise one. | M | |
| 358 | Seanan | Hebrew | Gift from God. | M | |
| 359 | Seanan | Irish | Little old wise one. | M | |
| 360 | Seanlaoch | Irish | Old hero. | M | |