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Look up kmo in Wiktionary, the free dictionary.
KMO may refer to:
- Knowledge Master Open, a semiannual worldwide academic competition
- Korean Mathematical Olympiad, a competition in South Korea
- KMO (gene), which encodes the enzyme kynurenine 3-monooxygenase
- Manokotak Airport, a state-owned airport in Alaska, IATA code KMO