AOP may refer to:
AOpen (Chinese: 建碁股份有限公司; pinyin: Jiànqí Gǔfèn Yǒuxiàn Gōngsī, stylized AOPEN) is a major electronics manufacturer from Taiwan that makes computers and parts for computers.
Aoplus defraudator is a species of wasps in the genus Aoplus. It was first identified by Wesmael, in 1845.
Aopo is a village on the island of Savai'i in Samoa. It is in the political district of Gaga'ifomauga.
Alpha Omicron Pi (ΑΟΠ, AOII) is an international women's fraternity that forges lifelong friendships and promotes both academic excellence and responsible citizenship.
Internet Relay Chat services (usually called IRC services) is a name for a set of features implemented on many modern Internet Relay Chat networks.
"Aoppana" (あおっぱな) is a single by Japanese boy band Kanjani Eight. It was released on September 5, 2012. It debuted in number one on the weekly Oricon Singles Chart and reached number one on the Billboard Japan Hot 100.