József Klekl (Slovene: Jožef Klekl) (October 13, 1874 – May 30, 1948) was a Slovene Roman Catholic priest from Prekmurje and politician in Hungary, writer, governor of the Slovene People's Party (Slovenska lüdska stranka), later a delegate in Belgrade. Klekl was an active proponent of the independence of the Slovene March in Hungary (Slovenska krajina), and for some time fusion with the State of Slovenes, Croats and Serbs.
Klekl born in Prekmurje, in Krajna, in the Vas County of the Kingdom of Hungary. The writer József Klekl (1879–1936), his cousin, was also born here. Because he was older, he is known as Jožef Klekl Stari ('József Klekl Sr.') in Slovenian. His parents, István Klekl and Teréz Sálmán, were farmers. The Klekl family was of German descent. His grandfather Anton Klekl was born in Kellerdorf, near Radkersburg, Austria.
On July 11, 1897 Klekl became a priest and chaplain to Ferenc Ivanóczy in Tišina. At the time, Ivanóczy was the governor of the Hungarian Slovenes. From 1902 to 1903 he was a chaplain in Dürnbach im Burgenland, and from 1903-1905 in Črenšovci. In 1905 he became the priest in Pečarovci. In 1910 he retired on a pension and lived in Črenšovci.
In 1904 Klekl founded the Hungarian Slovene Catholic newspaper Marijin liszt. In 1914 he founded the semi-radical newspaper Novine. In this paper he took a stance against the Hungarisation of Prekmurje.