The Second World War was a global war that lasted from 1939 to 1945.

The Second World War may also refer to:

• The Second World War (book series), 1948–1953 series by Winston Churchill
• The Second World War (book), 2012 book by Antony Beevor

• World War II (disambiguation)
• WWII (disambiguation)
• The First World War (disambiguation)
• World War III (disambiguation)