JW
JW may refer to:
- Jack Wills, a British clothing brand
 - Jehovah's Witnesses, a Christian denomination
 - John Wick, an action film franchise (since 2014) starring Keanu Reeves
 - Joko Widodo, 7th president of Indonesia, 16th governor of Jakarta, and 15th mayor of Surakarta
 - Juice WRLD (1998–2019), an American rapper and singer
 - Jurassic World, 2015 adventure film by Colin Trevorrow
 - Jurassic World (franchise), the Jurassic World franchise originating with the 2015 film
 - Justizwache, a branch of the Austrian Ministry of Justice responsible for safeguarding prisons and court buildings
 - JW, a patient with a "split brain"
 - JW, a catalogue of works by Leoš Janáček
 - The Jewish War, a c. AD 75 history book by Josephus
 - Vanilla Air (2013-2019, IATA code JW), a Japanese airline
 - Arrow Air (1947–2010), an American cargo airline
 - JW (Hong Kong singer), a Hong Kong singer and actress
 - ⟨jʷ⟩, IPA for a voiced labial–palatal approximant