| Name | Census Frequency |
|---|---|
| John Killian | 33 |
| James Killian | 26 |
| Michael Killian | 21 |
| Mary Killian | 20 |
| Thomas Killian | 17 |
| William Killian | 13 |
| Annie Killian | 12 |
| Bridget Killian | 12 |
| Ann Killian | 11 |
| Elizabeth Killian | 10 |
| Catherine Killian | 9 |
| Margaret Killian | 8 |
| Sarah Killian | 7 |
| Alice Killian | 6 |
| Ellen Killian | 6 |
| Patrick Killian | 6 |
| Amelia Killian | 5 |
| Joseph Killian | 5 |
| Anne Killian | 4 |
| Edward Killian | 4 |
| Emma Killian | 4 |
| Laura Killian | 4 |
| Martha Killian | 4 |
| Peter Killian | 4 |
| Edith Killian | 3 |
| Rank | Surname | Match | Census Frequency |
|---|---|---|---|
| 1 | Killen | 71% | 1,828 |
| 2 | Killeen | 71% | 891 |
| 3 | Killin | 86% | 730 |
| 4 | Kellon | 57% | 522 |
| 5 | Killan | 86% | 410 |
| 6 | Killian | 100% | 349 |
| 7 | Killon | 71% | 298 |
| 8 | Kellian | 86% | 253 |
| 9 | Kellen | 57% | 242 |
| 10 | Killion | 86% | 169 |
| 11 | Kellan | 71% | 152 |
The surname Killian is the 6th most popular variant of Killen.