| Name | # Entries |
|---|---|
| Young | 1992 |
| Yates | 369 |
| Yang | 237 |
| Yee | 179 |
| Yu | 133 |
| York | 79 |
| Yorke | 77 |
| Yeoman | 76 |
| Youngman | 69 |
| Yardley | 66 |
| Yule | 59 |
| Ye | 56 |
| Yoo | 55 |
| Yaxley | 47 |
| Yan | 47 |
| Yoon | 46 |
| Yeo | 37 |
| Yip | 36 |
| Yi | 34 |
| You | 34 |
| Yearbury | 33 |
| Yong | 32 |
| Yeung | 28 |
| Yap | 26 |
| Youth | 25 |
| Yeates | 24 |
| Younger | 23 |
| Yarrall | 22 |
| Yin | 22 |
| Yelavich | 20 |
| Yeatman | 19 |
| Yao | 19 |
| Yuen | 18 |
| Yun | 15 |
| Yeni | 15 |
| Yim | 14 |
| Yummy | 14 |
| Youn | 14 |
| Yuan | 13 |
| Yovich | 11 |
| Your | 11 |
| Yukich | 10 |
| Yung | 10 |
| Yau | 10 |
| Yarrow | 10 |
| Yawa | 10 |
| Yha | 9 |
| Youngs | 9 |
| Yellow&Reg; | 9 |
| Yam | 9 |
| Yandall | 8 |
| Youngson | 8 |
| Yousif | 8 |
| Ying | 8 |
| Yakas | 7 |
| Yoko | 7 |
| Yelland | 7 |
| Yadav | 7 |
| Yeh | 7 |
| Young's | 7 |
| Yuill | 7 |
| Yanez | 6 |
| Yum | 6 |
| Yearsley | 6 |
| Yellow | 6 |
| Yen | 6 |
| Yusuf | 6 |
| Yacht | 5 |
| Yendell | 5 |
| Youkhana | 5 |
| Yunus | 5 |
| Youl | 5 |
| Yorston | 5 |
| Ymca | 5 |
| Yuile | 5 |