Jester is the surname of:

• Beauford H. Jester (1893–1949), Governor of Texas from 1947–1949
• George Taylor Jester (1847–1922), Lieutenant Governor of Texas from 1895–1899, father of Beauford
• Ralph Jester (1901–1991), American costume designer
• Virgil Jester (born 1927), former Major League Baseball pitcher
• Simon Jester, an alias of the sentient computer Mike in Robert Heinlein's novel The Moon is a Harsh Mistress

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