{{wikt}} '''OEI''' or '''Oei''' can refer to: {{TOC right}}

==OEI== *Institute for East European Studies *Obsidian Entertainment, Inc., a video game developer *Organization of Ibero-American States, known by the Spanish and Portuguese-derived acronym, OEI *Ozarks Entertainment, Inc., a former owner of the Dogpatch USA amusement park in the United States

==Oei== *Ōei, a Japanese era name spanning from 1394 to 1428 <!--*Oei, an ethnic Chinese surname based on the Dutch romanization of the Zhangzhou pronunciation of Huang in Central Java and East Java. In West Java, a more common romanization is Oey, while in Malaysia and Singapore Ooi and Wee are the norm.<ref name="Haryano (2017)">{{cite book |last1=Haryono |first1=Steve |title=Perkawinan Strategis: Hubungan Keluarga Antara Opsir-opsir Tionghoa Dan 'Cabang Atas' Di Jawa Pada Abad Ke-19 Dan 20 |date=2017 |publisher=Steve Haryono |location=Utrecht |isbn=9789090302492 |url=https://books.google.com/books?id=IoDgswEACAAJ&dq=perkawinan+strategis |accessdate=18 November 2019 |language=en}}</ref>-->

===Surname=== *David Oei, Hong Kong-born American classical pianist *Madame Wellington Koo (born Oei Hui-lan), Chinese-Indonesian international socialite and style icon, briefly First Lady of the Republic of China *Oei Tiong Ham, Majoor-titulair der Chinezen, colonial Chinese-Indonesian tycoon in Southeast Asia *Oei Wie Gwan, Chinese-Indonesian businessman and founder of Djarum

==See also== *Oey, a surname

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