Oil, Chemical and Atomic Workers International Union

Oil, Chemical and Atomic Workers International Union

Abbreviation	OCAW
Merged into	Paper, Allied-Industrial, Chemical and Energy Workers International Union
Formation	1955 (1955)
Dissolved	January 4, 1999 (1999-01-04)
Merger of	Oil Workers International Union United Gas Coke and Chemical Workers of America
Type	Trade union
Location	United States Canada (until 1980)
Membership	80,000[1]
Presidents	Jack Knight Alvin F. Grospiron Robert Goss Joseph Misbrener Robert Wages
Secessions	Energy and Chemical Workers Union
Affiliations	AFL–CIO

The Oil, Chemical and Atomic Workers Union (OCAW) was a trade union in the United States which existed between 1917 and 1999. At the time of its dissolution and merger, the International represented 80,000 workers and was affiliated with the AFL–CIO.