Sep or SEP may refer to: Abbreviations. Sep., a common abbreviation for September. Septentrional (borrowed from Latin meaning northern, or pertaining to the north) Military. ORP Sęp (1938), a Polish Navy submarine until 1972. ORP Sęp (2002), a Polish Navy submarine. Splitterskyddad EnhetsPlattform, a Swedish armoured fighting vehicle. Special Intelligence Patrols, a Danish Long Range Reconnaissance Patrol unit from 1959 to 1994. People. Sep (given name) Hrvoje Sep (born 1986), Croatian boxer. Politics and government.
https://en.wikipedia.org/wiki/SEP