{{wikt}} '''Seir''' or '''SEIR''' may refer to:

*Mount Seir, a mountainous region stretching between the Dead Sea and the Gulf of Aqaba *Seir the Horite, chief of the Horites, a people mentioned in the Torah *Sa'ir, also Seir, a Palestinian town in the Hebron Governorate in the West Bank *Seir, a demon in the ''Ars Goetia'' *Southeast Indian Ridge (SEIR), is a mid-ocean ridge in the southern Indian Ocean *SEIR model, a compartmental model in epidemiology *Single-engine instrument rating, an aircraft pilot qualification

==See also== *Sear (disambiguation) *Sere (disambiguation) *Osiris, an Egyptian god *Sah (god), in Egyptian mythology the deification of the constellation Orion *Seri people, an indigenous group of the Mexican state of Sonora

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