Waw or WAW may refer to:

• Waw (letter), a letter in many Semitic abjads
• Waw, the velomobile
• Another spelling for the town Wau, South Sudan
• Waw Township, Burma
• Warsaw Chopin Airport, an international airport serving Warsaw, Poland (IATA airport code)

• Warsaw, capital city of the Republic of Poland
• Watchful waiting (watch and wait)
• We Are Wolves, a Quebec indie rock band
• Wild Atlantic Way, a tourism route in Ireland
• William Allen White, an American newspaper editor
• Wired All Wrong, a band
• Women are wonderful effect
• Women's Archive Wales
• World Association of Wrestling
• World at War (disambiguation)
• The World Atlas of Wine
• Call of Duty: World at War, a video game
• "We Are the World", Michael Jackson's and associates' song
• Wings and Wheels format of the VintageAirRally
• Write after write (WAW) hazard, a data dependency hazard
• Wuzheng Auto Works, a brand of trucks owned by the Shandong Wuzheng Group CO., LTD
• Survivor: Winners at War, the 40th season of American reality competition Survivor

• WAW (TV station)
• Warsaw Chopin Airport
• Golden West Network

• Waw, the penultimate threat ranking for abnormalities in the Korean video game Lobotomy Corporation

• Wau (disambiguation)