| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 1601 | Scota | Irish | Scotland. | F | |
| 1602 | Scully | Irish | Herald. | M | |
| 1603 | Seafra | Irish | Peace from God. | M | |
| 1604 | Seafraid | Irish | Peace from God. | M | |
| 1605 | Seaghda | Irish | Majestic. | M | |
| 1606 | Seamus | Irish | Variant of Shamus (Irish variant of James: supplanter). | M | |
| 1607 | Sean | Irish | Irish variant of John: God is gracious; gift from God. | M | |
| 1608 | Seana | Irish | Present. | F | |
| 1609 | Seanachan | Irish | Wise one. | M | |
| 1610 | Seanan | Irish | Little old wise one. | M | |
| 1611 | Seanlaoch | Irish | Old hero. | M | |
| 1612 | Searbhreathach | Irish | Judicious. | M | |
| 1613 | Searlait | Irish | Feminine form of Charles: mannish, manly. | F | |
| 1614 | Seireadan | Irish | Untamed. | M | |
| 1615 | Seosaimhin | Irish | Fertile. | F | |
| 1616 | Seosaimhthin | Irish | Fertile. | F | |
| 1617 | Shae | Irish | Variant of Shea: courteous. | M | |
| 1618 | Shai | Irish | Variant of Shea: courteous. | M | |
| 1619 | Shain | Irish | Variant of Shaun from John. | M | |
| 1620 | Shaine | Irish | Variant of Shaun from John. | M | |