István Szelmár, also known in Slovene as Števan Selmar (23 October 1820 – 15 February 1877) was a Slovene Roman Catholic priest and writer in the Kingdom of Hungary.
However, in the historical Wendic March (the modern Prekmurje and Vendvidék) the Slovene names of the population were frequently altered, insofar as they were registered by the Hungarian authorities, which often misspelled them.
Szelmár was born in Grad (Felsőlendva), and was ordained on 20 July 1845, in Szombathely.
In 1873 he translated the Hungarian book by Alajos Róder Bibliai Történetek (History of the Bible).
The Slovenian translation is called Zgodbe Sztaroga i Nóvoga Zákona (Stories of the Old and New Testament).