WO or Wo may refer to:
World War II (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although conflicts reflecting the ideological clash between what would become the Allied and Axis blocs began earlier.
World War I (often abbreviated as WWI or WW1), also known as the First World War or the Great War, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918. Contemporaneously described as the "War to End All Wars", more than 70 million military personnel, including 60 million Europeans, were mobilised in one of the largest wars in history.
Wolverhampton Wanderers Football Club ( listen), commonly referred to as Wolves, is an English professional football club based in the city of Wolverhampton in the West Midlands.
The wolf (Canis lupus), also known as the gray wolf, timber wolf, western wolf, and its other subspecies is a canine native to the wilderness and remote areas of Eurasia and North America.
Heywood "Woody" Allen (born Allan Stewart Konigsberg; December 1, 1935) is an American director, writer, actor, comedian, and musician whose career spans more than six decades.
In demographics, the world population is the total number of humans currently living, and was estimated to have reached 7.6 billion people as of May 2018.World population has experienced continuous growth since the end of the Great Famine of 1315–17 and the Black Death in 1350, when it was near 370 million.