| Wala | Walch |
| Walden | Waldfogel |
| Waldin | Waldraff |
| Walker | Walpen |
| Walser | Walter |
| Walther | Walzer |
| Waser | Wasmer |
| Weatherill | Wecker |
| Wegener | Wegcr |
| Weingarten (von) | Weingartner |
| Weisbrod | Weiss (von) |
| Weissbrodt | Weissen |
| Welff | Wellenreiter |
| Wellig | Welschen |
| Welti | Wenger |
| Werlen | Werner |
| Werra (von) | Werro |
| Wespi | Westreicher |
| Widmann | Widmer |
| Wiestiner | Will |
| Willa | Willa (de) |
| Willa (von) | Willermolen |
| Williner | Willisch |
| Willy | Winschen |
| Wirthner | Witschard |
| Wöginger | Wolf |
| Wolf (de) | Wouilloz |
| Wuilloud | Wullio |
| Wüthrich | Wyden |
| Wyer | Wyss |