Oxo may refer to:
Computing
- OXO, the first digital graphical computer game, a version of Tic-tac-toe from 1951
Business
- Oxo (food), a brand of food products in the UK, South Africa and Canada
- Oxo Tower, a London landmark formerly owned by the makers of Oxo food products
- OXO (kitchen utensils brand), a US-based manufacturer of ergonomic handheld kitchen utensils
Chemistry
- Oxo ligand, a divalent ligand
- oxo-, a prefix in the formal IUPAC nomenclature for the functional group '=O' (a substituent oxygen atom connected to another atom by a double bond)
- Hydroformylation, an industrial process for the production of aldehydes from alkenes
- Oxo Biodegradable, degradation resulting from oxidative and cell-mediated phenomena, either simultaneously or successively
- Oxo alcohol, alcohols that are prepared by adding carbon monoxide (CO) and hydrogen
Music
- OXO (band), an 80s New Wave pop band
- "OXO", a 2015, number one US dance song, by Olivia Somerlyn
Sports
- Oxo (horse), a racehorse, winner of the 1959 Grand National
Other uses
- Tic-tac-toe (OXO, and various other synonyms) a pen-and-pencil game
See also
- Tic Tac Toe (disambiguation)
- Noughts and crosses (disambiguation)