A mentat is a profession in the fictional Dune universe created by Frank Herbert.

Mentat may also refer to:

• Mentat (computing), a C++ macro-dataflow extension
• Mentat (company), a software company acquired by Packeteer in 2004
• Mentat (software), preprocessor and postprocessor of MSC Marc software finite element analyses
• Mentats, fictional drugs in the Fallout video game series
• The Mentat, a school for mental arts in the 1995 science fiction novel The Search for Snout

This disambiguation page lists articles associated with the title Mentat.
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