| Name | # Entries |
|---|---|
| Yarra | 11 |
| Yendle | 11 |
| Yohanes | 11 |
| Yohannan | 11 |
| Yokota | 11 |
| Yor | 11 |
| Yosef | 11 |
| Yoshikawa | 11 |
| Yourn | 11 |
| Ytting | 11 |
| Yurchenko | 11 |
| Yuen` | 10 |
| Yi Yi | 10 |
| Yamani | 10 |
| Youm | 10 |
| Yaacob | 10 |
| Yahaya | 10 |
| Yahia | 10 |
| Yanti | 10 |
| Yatawara | 10 |
| Yazici | 10 |
| Yeing | 10 |
| Yerlikaya | 10 |
| Yesil | 10 |
| Yiallourou | 10 |
| Ylagan | 10 |
| Yoa | 10 |
| Yolande | 10 |
| Yonzon | 10 |
| Yovanche | 10 |
| Yozzi | 10 |
| Ypelaan | 10 |
| Yuki | 10 |
| Yulianto | 10 |
| Yunker | 10 |
| Yusupov | 10 |
| Yamada | 9 |
| Yueh | 9 |
| Yogeswaran | 9 |
| Yale | 9 |
| Yagoub | 9 |
| Yango | 9 |
| Yanik | 9 |
| Yappo | 9 |
| Yarranton | 9 |
| Yarroll | 9 |
| Yasa | 9 |
| Yavuzcan | 9 |
| Yazar | 9 |
| Yedla | 9 |
| Yeganeh | 9 |
| Yol | 9 |
| Yonis | 9 |
| Yorulmaz | 9 |
| Younane | 9 |
| Yousseff | 9 |
| Yousufi | 9 |
| Yout | 9 |
| Yuang | 9 |
| Yuskan | 9 |
| Yang | 8 |
| Ying | 8 |
| Yiangou | 8 |
| Yaffe | 8 |
| Yoshioka | 8 |
| Yacoubian | 8 |
| Yaghoubi | 8 |
| Yai | 8 |
| Yakopo | 8 |
| Yalamanchili | 8 |
| Yamak | 8 |
| Yamaoka | 8 |
| Yannas | 8 |
| Yannieh | 8 |
| Yaroslavceff | 8 |