'''Seid''' or '''SEID''' may refer to: {{TOC right}}
==Medicine== *Systemic exertion intolerance disease (SEID), alternative name for myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS)
==People== *Alamin Mohammed Seid, Eritrean politician *Alan R. Seid (born 1957), Palauan businessman and politician *Joseph Brahim Seid (1927–1970), Chadian writer and politician *Ruth Seid (1913–1995), American novelist under the pen name Jo Sinclair *Sattar Seid (born 1987), Iranian cross-country skier *Seïd Khiter (born 1985), French footballer *Seid Memić (born 1950), Bosnian singer
==Fictional characters== *Pasha Seid, in Verdi's opera ''Il corsaro'' *Seid, in ''Mahomet'' (play)
==Other uses== *Seid or Seiðr, a type of Old Norse sorcery or witchcraft *USS ''Seid'' (DE-256), a United States Navy destroyer escort of World War II *Secure element ID (SEID), an aspect of near field communication
==See also== {{canned search|seid}} *{{srt}} * Sead (disambiguation) * Seed (disambiguation)
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