Seira

Seira may refer to:


 * Seira, Estonia, a village in Estonia
 * Seira, Aragon, a municipality in Aragon, Spain
 * Seira (springtail), a genus of slender springtails
 * SEIRA, surface-enhanced infrared absorption spectroscopy, see List of materials analysis methods
 * Seira Nakayama (中山 セイラ) (born 1983), Japanese sabre fencer
 * Seira Ryū (劉 セイラ) (born 1985), Chinese–Japanese voice actress
 * Seira, a character in the manga series Mermaid Melody Pichi Pichi Pitch
 * Seira, a character in the anime series Endro!