Look up GMO in Wiktionary, the free dictionary.

GMO is a genetically modified organism.

GMO may also refer to:

• Genetically modified food
• Gell-Mann–Okubo mass formula in particle physics
• Generalised molecular orbital theory, in chemistry
• Gulf, Mobile and Ohio Railroad, a U.S. railroad carrier corporation
• GMO LLC, a Boston-based asset management firm led by Jeremy Grantham
• GMO Internet, Inc, a Japanese internet services company, and parent of web security company GlobalSign
• NSCB Gomoh Junction railway station (station code: GMO), Jharkhand, India

Music

• The Glenn Miller Orchestra, a U.S. jazz group
• Green Mountain Orchestra, a band from Hong Kong
• "G.M.O. (Got My Own)", 2018 song by Mýa

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