Rishon may refer to:
*
Rishonim
''Rishonim'' (; he, ; sing. he, , ''Rishon'', "the first ones") were the leading rabbis and '' poskim'' who lived approximately during the 11th to 15th centuries, in the era before the writing of the ''Shulchan Aruch'' ( he, , "Set Table", a ...
, an era of Rabbis and Poskim
*
Rishon LeZion, a city in Israel
*
Rishon model, a preonic model of sub-quark particle physics.
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