Jonas Jaknavičius (1589 – April 11, 1668) was a Lithuanian Jesuit chancellery worker, teacher, Rector of the Kražiai College, Smolensk College, and Vilnius College.
[1][2][3][4] Jaknavičius prepared and published a book about the Polish and Lithuanian gospels for sermons (Polish: Ewangelie polskie y litewskie, Lithuanian: Lenkiškos ir lietuviškos evangelijos) which was republished 40 times in the 17th-19th centuries due to their popularity.
[1][5] The Ewangelie polskie y litewskie was written and published in Polish and Lithuanian languages.
[6] The oldest surviving version of the Ewangelie polskie y litewskie is from 1647 and was recognized by UNESCO (currently preserved at the Kaunas University of Technology).
[1][7][8] Jaknavičius also contributed to the 2nd edition (1631) of Konstantinas Sirvydas' dictionary Dictionarium Trium Lingvarum in usum Studiosæ Iuventutis.