Ivan Belostenec (c. 1594 – 2 February 1675) was a Croatian linguist, lexicographer and poet.

Belostenec was a prior of Pauline monasteries in Lepoglava, Svetice at Ozalj and Sveta Jelena at Čakovec, and also a visitator (lat.)

Belostenec wrote poems (which are lost) and sermons (Ten Commandments About The Eucharist, 1672).

Except for its richness of words, (about 40,000 words on 2,000 pages of text) Gazophylacium is also important for its trilingual concept (kajkavian-chakavian-shtokavian) characteristic for the members of the Ozalj literary-linguistic circle.

Gazophylacium was finished and prepared for publication by two Paulists - Jerolim Orlović and Andrija Mužar, it was published in Zagreb 1740.