'''Westerhout''' is a Dutch surname.
'''Westerhout''' may also refer to:
==People with the surname== * Alexander Westerhout (1590–1661), a Dutch glass painter * Gart Westerhout (1927–2012), a Dutch astronomer * Madeleine Westerhout (born 1990), an American political secretary
==Other== * A 20th-century astronomical catalog, including W40, W43, and W49 * The asteroid 5105 Westerhout (also known as {{mp|1986 TM|1}})
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