The South East Asian Mathematics Competition (SEAMC) is an annual three-day non-profit mathematics competition for Southeast Asian students at different grade levels. It is a qualifying competition organized by Eunoia Ventures for invitation to the . Teams have participated from China, Thailand, Hong Kong, Malaysia, Singapore, Brunei, Vietnam, Cambodia, and Nepal. Host venue locations of the SEAMC changes annually. An online version was held due to the COVID-19 Pandemic.