AO, aO, Ao, ko ao na iya nufin to: Manya Kawai, ƙimar nishaɗi AO Music (AOmusic), ƙungiyar haɗin kiɗan duniya wanda ya ƙunshi Jay Oliver, Miriam Stockley da sauransu Eureka Bakwai: AO, jerin talabijin na Japan mecha anime Ubangiji Ao, allahn almara a cikin Dungeons & Dragons sararin samaniya Orange mai ban haushi, jerin gidan yanar gizo na wasan barkwanci na Amurka AO (Asalin Kamfanin Tantancewar Amurka) ruwan tabarau na tabarau, alama yanzu an haɗa ta da Carl Zeiss Vision Gidauniyar AO (asalin Arbeitsgemeinschaft für Osteosynthesefragen ), ƙungiya mai ba da riba ta sadaukar da kai don magance rauni da rikicewar tsarin musculoskeletal AO World, mai siyar da kayan masarufi na Burtaniya a ƙarƙashin sunan alama.com Aktsionernoye Obschestvo ko Aktsionernoye Obshchestvo