- W ... wadden
- Wadden Sea ... Wagner, Herbert
- Wagner, Honus ... Waigeo Island
- Waiheke Island ... wakan
- Wakan rōei shū ... Walden, Phil
- Walden, Thomas Howard, Lord Howard of ... Walk, The
- Walk—Don’t Run ... wall cloud
- wall creeper ... Wallenda Family, the
- Wallenda, Karl ... Walsh, Bill
- Walsh, Courtney ... Wan Jiabao
- Wan-ch’uan ... Wang Mojie
- Wang Pei ... Wappapello Dam
- Wapping-Rotherhithe Tunnel ... war, technology of
- War, The ... warehouse club
- warehouse receipt ... Warner-Lambert Pharmaceutical Company
- Warner/Reprise Records ... Warsaw, Compact of
- Warsaw, Duchy of ... Washington
- Washington ... Wāṣil ibn ʿAṭāʾ al-Ghazzāl
- Wasīlah al-adabiyyah ilā al-ʿulūm al-ʿArabiyyah, Al- ... Watching the Spring Festival
- watchman ... water mint
- water moccasin ... water-witch
- Waterberg Series ... waterwheel
- waterwheel plant ... Watts, André
- Watts, Charlie ... Wawa Belt
- Wawat ... Waynflete, William of
- wayno ... weak boson
- weak completeness ... Weaver, Robert Clifton
- Weaver, Sigourney ... Webster City
- Webster Lake ... Weeknd, The
- Weeks, Feast of ... Weight of Water, The
- weight throw ... Weismann, August
- Weismann, August Friedrich Leopold ... Welensky, Roland
- Welensky, Sir Roy ... Wells, Dicky
- Wells, E. ... Wen Zhengming
- Wen-Amon ... Wenzel, Hanni
- Wenzel, Karl von ... Wessex
- Wessex ... West Indian lime
- West Indian manatee ... West Vancouver
- West Virginia ... western bleeding heart
- Western blue-eyed grass ... Western New England College
- Western New England University ... Westerschelde
- Westerwald ... Westwood, Vivienne
- westwork ... WGN
- WHA ... What the Grass Says
- What the Light Was Like ... Wheeler, William A.
- Wheeler, William Almon ... Which Side Are You On?
- Whichcote, Benjamin ... whistleblowing
- Whistlecraft, William and Robert ... White Cloud Temple
- white clover ... white magic
- white mahogany ... white salmon
- White San Pedro fig ... White, James Larkin
- White, Jo Jo ... white-tailed mongoose
- white-tailed prairie dog ... Whitman College
- Whitman Massacre ... Who’s Who in America
- Who’s Who in America: A Biographical Dictionary of Notable Living Men and Women ... wick channel
- Wick House ... Widows
- Widows of Eastwick, The ... Wigan
- wigeon ... Wild Bunch, The
- wild calla ... wildcat
- wildcat bank ... Wilhelm, Warren, Jr.
- Wilhelmina ... Willem Pretorius Game Reserve
- Willem van Ruysbroeck ... William the Marshal
- William the Silent ... Williams, Paul R.
- Williams, Paul Revere ... Willmes press
- Willmore City ... Wilson, Darren
- Wilson, David ... Wimborne Minster
- Wimmera ... Windeby I
- Windelband, Wilhelm ... Winfield, Dave
- Winfield, Paul ... Winning Arguments: What Works and Doesn’t Work in Politics, the Bedroom, the Courtroom, and the Classroom
- Winning Bridge Made Easy ... Winter’s Bone
- Winter’s Journey ... Wirgman, Charles
- Wirral ... Wissowa, Georg
- Wistar, Caspar ... Witigis
- Witiko ... Władysław III Warneńczyk
- Władysław IV Vasa ... Wolde-Giyorgis, Girma
- Wolds ... Wolin National Park
- Wolkenburg ... Woman Sweeping
- Woman Taken in Adultery, The ... Women’s March
- Women’s National Basketball Association ... wood lice
- wood lily ... woodchuck
- woodcock ... Woodward, Patti
- Woodward, R. B. ... Worcester, Battle of
- Worcester, Edward Somerset, 2nd Marquess of ... workers’ control
- Workers’ Council ... World Cancer Campaign
- World Cancer Day ... World of Henry Orient, The
- World of Homer ... Worldwide Governance Indicators project
- worldwide interoperability for microwave access ... WP&YR
- WPA ... Wright of Derby
- Wright State University ... writing manual
- writing system ... Wu-ching
- Wu-chou ... Würzburg
- Würzburg school ... Wyeth, N. C.
- Wyeth, Nathaniel ... Wyvill, Christopher