Spir
# 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
