EPO or epo may refer to:
Organisations EPO (publisher), Belgium European Patent Office Evansville Philharmonic Orchestra, US
Science and technology Education and public outreach Electrolytic plasma oxidation, a metal surface treatment process Emergency power off Erythropoietin, a red blood cell production hormone and performance-enhancing drug Evening primrose oil Eosinophil peroxidase, an enzyme
Other uses Emergency Powers Order, per the Irish Emergency Powers Act 1939 Emergency protection order, under the UK's Children Act 1989 Epo (musician), Indonesian hip hop musician EPO (singer) (born 1960), Japanese singer Esperanto (ISO 639-2 code), a constructed language European Payment Order, a debt-collecting system in the EU Exclusive provider organization, in US health insurance