title: Spir
text: # Spir
  
  Spir or SPIR may refer to:
  
  * Spir, recently discovered class of actin nucleators in actin remodeling
  * Afrikan Aleksandrovich Spir (1837–1890), Russian philosopher
  * Juan Carlos Spir (1990) Colombian tennis player
  * Spir (album), an album by Karl Seglem's Sogn-A-Song
  * Spir (imprint), an imprint of VDM Publishing that publishes and sells Wikipedia articles in printed form via print on demand
  * Il spir, a viewing platform in the canton of Graubünden in Switzerland
  * Spectral presaturation with inversion recovery, a sequence of magnetic resonance imaging
  
  ## Acronyms
  
  * Serviciul de Poliție pentru Intervenție Rapidă, a Romanian rapid response police unit
  * Special Purpose Islamic Regiment, a Chechen organization
  * Standard Portable Intermediate Representation, an intermediate language for parallel compute and graphics by Khronos Group
  