WI or wi may refer to:
Wikipedia ( (listen), (listen) WIK-ih-PEE-dee-ə) is a multilingual, web-based, free encyclopedia based on a model of openly editable and viewable content, a wiki.
William Shakespeare (bapt. 26 April 1564 – 23 April 1616) was an English poet, playwright and actor, widely regarded as the greatest writer in the English language and the world's greatest dramatist.
Sir Winston Leonard Spencer-Churchill (; 30 November 1874 – 24 January 1965) was a British politician, army officer, and writer.
Wikidata is a collaboratively edited knowledge base hosted by the Wikimedia Foundation. It is a common source of open data that Wikimedia projects such as Wikipedia can use, and by anyone else, under a public domain license.
Wisconsin ( (listen)) is a U.S. state located in the north-central United States, in the Midwest and Great Lakes regions.
William III (Dutch: Willem; 4 November 1650 – 8 March 1702), also widely known as William of Orange, was sovereign Prince of Orange from birth, Stadtholder of Holland, Zeeland, Utrecht, Gelderland and Overijssel in the Dutch Republic from 1672 and King of England, Ireland and Scotland from 1689 until his death in 1702. As King of Scotland, he is known as William II.
Wilhelm II (German: Friedrich Wilhelm Viktor Albert; 27 January 1859 – 4 June 1941) was the last German Emperor (Kaiser) and King of Prussia, reigning from 15 June 1888 until his abdication on 9 November 1918 shortly before Germany's defeat in the First World War.
Willard Carroll Smith II (born September 25, 1968) is an American actor and rapper. In April 2007, Newsweek called him "the most powerful actor in Hollywood".