Astronomy[edit] Oxo (crater), an impact crater located in dwarf planet Ceres Business[edit] 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[edit] Oxo ligand, a divalent ligand oxo-, a prefix in