Sei or SEI may refer to: Arts. Sei (album), by Brazilian singer and composer Nando Reis. "Sei", the title-song and first single from that album. Sei (film), a 2018 Tamil thriller film. Organizations and companies. 7-Eleven, a popular multinational chain of gas stations and convenience stores. Safety Equipment Institute, a private, non-profit organization established to test safety and protective products. Scottish Episcopal Institute, the theological college of the Scottish Episcopal Church.
https://en.wikipedia.org/wiki/SEI