During the fair on March 4-6, the township will be based in the Town Hall Square, featuring traditional Jewish crafts, Jewish literature and Jewish food.
"It was the Jews who taught Lithuania to trade, nobody will argue about this," Algis Gurevičius, the director of the Jewish Culture and Information Centre, has said.
The township will include about a dozen of craft tents and marketplaces with Jewish souvenirs, a bookstore, a fabric shop, a laundry and a gramophone shop.
Traditional artists will try to break the record for the longest wooden spoon in Lithuania by carving a 12-metre wooden spoon, and a barbecue competition will be held as well.
The Vilnius Cathedral's square will have tents featuring traditional craftsmen selling their wares.
About 500 guests from 16 foreign countries are expected at the St. Casimir's Fair this year.
St. Casimir's Fair evolved from the Casimir's processions that date back to 1604.