Ako or AKO may refer to:
- Akō, Hyōgo, a city located in Hyōgo Prefecture, Japan
- Ako, Cameroon, a town in Cameroon
- Ako, the Japanese name of Alexandrovsk-Sakhalinsky
- Ako, the Livonian chieftain of Salaspils, killed in 1206
- Alpha Kai Omega
- Army Knowledge Online
- Ako, fictional character from the Capcom video game, Onimusha 3: Demon Siege
- A-ko, the female protagonist in the anime Project A-ko
- Ako, the fictional character from the manga Negima
- AKO, the IATA code for Colorado Plains Regional Airport in Akron, Colorado
- AKO, Amsterdamsche Kiosk Onderneming, a chain of over 100 bookstores and newsstands in the Netherlands.
- Ako Aotearoa, the National Centre for Tertiary Teaching Excellence in New Zealand