Red Hat (disambiguation)

Red Hat is a software corporation.

Red hat or Red Hat may also refer to:

Computing and technology
 Red Hat Enterprise Linux, a computer operating system
 Red Hat Linux, discontinued computer operating system

Groups and organizations
 Red Hat sect(s), three different schools of Tibetan Buddhism
 Red Hat Society, a social organization traditionally for women over 50

Other uses
 Galero, a red hat traditionally worn by cardinals of the Catholic Church