| Name | # Entries |
|---|---|
| Zammett | 1023 |
| Z | 793 |
| Zellars | 286 |
| Zappia | 268 |
| Zarb | 232 |
| Zerafa | 212 |
| Zadow | 171 |
| Zito | 148 |
| Ziebell | 127 |
| Zreika | 122 |
| Zacaria | 114 |
| Zischke | 113 |
| Zappala | 109 |
| Zuvela | 109 |
| Zagami | 92 |
| Zanatta | 92 |
| Zielke | 90 |
| Zerk | 87 |
| Zilm | 87 |
| Zunker | 85 |
| Zhen Zhen | 84 |
| Zell | 83 |
| Zeidan | 82 |
| Zwar | 78 |
| Zollo | 76 |
| Ziino | 75 |
| Zerner | 72 |
| Ziebarth | 70 |
| Zweck | 68 |
| Zagari | 65 |
| Zerella | 65 |
| Zillmann | 65 |
| Zannetti | 63 |
| Zambelli | 63 |
| Ziersch | 61 |
| Zipf | 61 |
| Zotti | 61 |
| Zillman | 60 |
| Zoe | 60 |
| Zerna | 59 |
| Zemek | 58 |
| Zervas | 55 |
| Zumbo | 53 |
| Zorzi | 52 |
| Zissis | 51 |
| Zoch | 50 |
| Zerbst | 50 |
| Zurek | 49 |
| Zahnow | 48 |
| Zraika | 48 |
| Zimmerle | 47 |
| Zafiropoulos | 46 |
| Zanin | 44 |
| Zhu Zhu | 44 |
| Zeaiter | 44 |
| Zinghini | 44 |
| Zampogna | 43 |
| Zeuschner | 43 |
| Zurvas | 43 |
| Zuniga | 43 |
| Zanon | 43 |
| Zahl | 42 |
| Zomer | 42 |
| Zubrinich | 42 |
| Zadro | 41 |
| Zu | 41 |
| Zele | 41 |
| Zappelli | 40 |
| Zafiris | 39 |
| Zarafa | 39 |
| Zippel | 39 |
| Zivanovic | 39 |
| Zampatti | 38 |
| Zangari | 37 |
| Zullo | 37 |