Piotr Blastus Kmita (died ca. 1632) was a Polish-Lithuanian Protestant printer and writer from the Grand Duchy of Lithuania in the PolishâÂÂLithuanian Commonwealth. He was associated with the Radziwià Âà  family. He was printer of the works of Symon Budny. Originally his press was in Vilnius but then he moved to LubÃÂa, under the patronage of the Calvinist hetman Christopher Radziwill.