Porin may refer to:
*
Porin (protein)
Porins are beta barrel proteins that cross a cellular membrane and act as a pore, through which molecules can diffuse. Unlike other membrane transport proteins, porins are large enough to allow passive diffusion, i.e., they act as channels ...
, a transmembrane protein
*
''Porin'' (opera), a Croatian grand opera, first performed in 1897
*
Porin (music award)
Porin is a Croatia
Croatia, officially the Republic of Croatia, is a country in Central Europe, Central and Southeast Europe, on the coast of the Adriatic Sea. It borders Slovenia to the northwest, Hungary to the northeast, Serbia to the ...
, Croatian music industry award, first awarded in 1994 and named after the opera
*
Porin (ruler)
Porga (), or Porinos (), was an early ruler of the Duchy of Croatia during whose rule the Croats were baptized. He succeeded his father as the archon of Croats, who ruled when the Croats successfully fought the Pannonian Avars during the reign of ...
, the name of an early Croatian medieval leader
{{disambig