Red Hat is an American software company that provides open source software products.
Red hat or Red Hat may also refer to:
- Red Hat Enterprise Linux, a computer operating system
 - Red Hat Linux, a computer operating system
 - Red Hat, a site in Project 112, an American biological and chemical weapon experimentation project
 - Red Hat sect, three different schools of Tibetan Buddhism
 - Red Hat Society, a social organization traditionally for women over 50
 - Red hat, on of de Bono's Six Thinking Hats
 - Red hat, a trainee in a volunteer fire department
 - Red Hat Cell Block, a former prison cell block at the Louisiana State Penitentiary
 - Operation Red Hat, a 1971 United States movement of chemical warfare munitions
 
See also
- All pages with titles beginning with Red Hat
 - All pages with titles containing Red Hat
 - Redcap (disambiguation)
 - Red beret, a military beret worn by many military police forces
 - Galero, a red hat traditionally worn by cardinals of the Catholic Church
 - Zucchetto, a small, hemispherical, form-fitting ecclesiastical skullcap
 - Make America Great Again
 
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