| Weeden (10,511) | Weekley (9,964) | Weeks (182,165) |
| Weems (27,273) | Weese (12,473) | Wegner (24,322) |
| Wei (20,565) | Weidman (16,261) | Weidner (27,474) |
| Weigand (14,890) | Weigel (19,952) | Weil (30,750) |
| Weiland (18,853) | Weiler (22,940) | Weimer (29,187) |
| Weinberg (38,527) | Weinberger (11,373) | Weiner (53,801) |
| Weinstein (53,295) | Weintraub (10,078) | Weir (77,834) |
| Weis (38,726) | Weise (18,261) | Weiser (19,737) |
| Weisman (15,511) | Weiss (209,937) | Weissman (12,541) |
| Weitzel (15,517) | Welborn (19,343) | Welch (519,428) |
| Weldon (51,214) | Welker (30,423) | Weller (71,634) |
| Welling (12,661) | Wellington (21,840) | Wellman (40,157) |
| Wells (766,946) | Welsch (10,784) | Welsh (191,070) |
| Welter (13,311) | Welton (18,048) | Welty (17,838) |
| Wen (12,239) | Wendel (16,710) | Wendell (17,624) |
| Wendling (10,255) | Wendt (46,570) | Wenger (27,897) |
| Wenner (9,895) | Wentworth (45,262) | Wentz (29,888) |
| Wentzel (12,843) | Wenzel (37,959) | Werner (137,249) |
| Wert (14,041) | Wertz (31,624) | Wescott (24,832) |
| Wesley (77,161) | Wessel (20,856) | Wesson (15,125) |
| West (833,338) | Westbrook (65,516) | Westcott (23,368) |
| Wester (17,676) | Westerfield (10,829) | Westerman (17,215) |
| Westfall (52,715) | Westlake (10,174) | Westmoreland (28,034) |
| Weston (99,896) | Westover (13,341) | Westphal (22,960) |
| Wetmore (12,690) | Wetzel (57,871) | Wexler (9,850) |
| Whalen (114,159) | Whaley (82,160) | Wharton (44,476) |
| Whatley (31,176) | Wheat (39,527) | Wheatley (41,154) |
| Wheaton (35,184) | Wheeler (585,337) | Wheelock (18,663) |
| Whelan (41,145) | Whetstone (15,706) | Whipple (65,398) |
| Whitacre (13,568) | Whitaker (198,875) | Whitcomb (43,130) |
| White (2,947,725) | Whited (19,551) | Whitehead (173,024) |
| Whitehouse (24,863) | Whitehurst (23,583) | Whiteley (12,976) |
| Whiteman (30,180) | Whitener (10,244) | Whiteside (38,302) |
