- W ... wadden
- Wadden Sea ... Wagner, Carl
- Wagner, Cosima ... Waiau-ua
- Waica ... wak’a
- waka ... Walden inversion
- Walden Pond ... Walk This Way
- Walk to Paradise Garden, The ... walks and hits per inning pitched
- Walküre ... wallaroo
- Wallas, Graham ... walrus
- Walsall ... Waman Puma de Ayala, Felipe
- Wamba ... Wang Junxia
- Wang Kŏn ... Wanxian
- Wanyan Min ... War Scroll
- War Stories ... Wards, Court of
- Wardsesson ... Warner, Kurtis Eugene
- Warner, Malcolm-Jamal ... Warsaw
- Warsaw Confederation ... washhand stand
- washing ... Washington-on-the-Brazos State Historical Site
- Washingtonia ... watch ball
- watch fob ... water kamudi
- water lettuce ... water-bearing stratum
- water-control program ... Waterston, John James
- Waterston, Sam ... Watterson, Henry
- Wattieza ... Waveney, River
- wavenumber ... Wayllaqa
- Waymon, Eunice ... We Were the Mulvaneys
- We Will Rock You ... Weatherman
- Weathermaster ... Weber, Pete
- Weber, Peter David ... Weedkiller’s Daughter, The
- Weedon’s Modern Encyclopedia ... Weichi Yiseng
- Weichsel Glacial Stage ... Weir, Peter
- Weir, Peter Lindsay ... Welcome to Dead House
- Welcome to Hard Times ... Wellington, Arthur Wellesley, 1st Duke of
- Wellington, Arthur Wellesley, 1st Duke of, Marquess of Douro, Marquess of Wellington, Earl of Wellington, Viscount Wellington of Talavera and of Wellington, Baron Douro or Wellesley ... Wembley
- Wembley Stadium ... Wentworth of Wentworth Woodhouse, Viscount Wentworth, Baron
- Wentworth, Benning ... Wesenwille
- Weser River ... West Fork Stones River
- West Fork White River ... west Siberian moose
- West Siberian Plain ... western
- Western ... western Labrador tea
- Western Lands, The ... Western Ukrainian National Republic
- Western Union Corporation ... Weston, Randolph E.
- Weston, Randy ... Weyden, Rogier van der
- Weyerhaeuser Company ... What Is Life?
- What Is Literature? ... wheel farthingale
- wheel feat ... Where I’ve Been, and Where I’m Going
- Where is Kyra? ... Whirlwind
- Whisenant, Edward ... white bryony
- White Butte ... White House Plumbers
- White House press corps ... White Plains
- White Plains, Battle of ... White Zombie
- White Zulu ... white-eared kob
- white-eared opossum ... Whitewater affair
- Whitewater Baldy Peak ... Whittle, Sir Frank
- Whittlesey, Derwent S. ... Why England Slept
- Why I Live at the P.O. ... wide-angle lens
- wide-area network ... Wieniawski, Henri
- Wieniawski, Henryk ... Wilbrord, Saint
- Wilbur Cross Parkway ... Wild One, The
- Wild Orchids ... wildland fire
- Wildlife ... Will o’ the Wisp
- Will o’ the Wisp ... William IV
- William IX ... Williams, Ella Gwendolen Rees
- Williams, Elmo ... Williamson ether synthesis
- Williamson’s sapsucker ... Wilmington coup and massacre
- Wilmington insurrection of 1898 ... Wilson, Lanford
- Wilson, Lanford Eugene ... Winckelmann, Johann Joachim
- Winckelmann, Maria Margaretha ... Windows 7
- Windows 8 ... Winger, Debra
- Wingfield family ... Winslow, Edward
- Winslow, Josiah ... Winters, Yvor
- Winterset ... Wisconsin, flag of
- Wisconsin, University of ... Witch of the North
- Witch of the Wave ... Witteberg Series
- Wittelsbach, House of ... Wobbler disease
- Wobblies ... Wolf, Christa
- Wolf, Christian, baron von ... Wolseley, Garnet, 1st Viscount Wolseley
- Wolsey Gallery ... Woman’s National Press Association
- Woman’s Peace Party ... won
- Won’t Back Down ... wood thrush
- wood tick ... Woodland
- Woodland Cree ... wool fat
- wool grease ... word writing
- Word, liturgy of the ... working capital
- working class ... World Cruiser
- World Cup ... World Series Champions
- World Series of Poker ... Worms, Concordat of
- Worms, Diet of ... Wrangell Mountains
- Wrangell, Mount ... Wright, Harold Bell
- Wright, James ... wrought iron
- wrought zinc ... Wu-ti
- Wu-wang ... Wuthering Heights
- Wuthering Heights ... Wyndham, John
- Wyndham, Sir Charles ... Wyvill, Christopher