István Szijjártó (Slovene: Števan Sijarto) (c. 1765 – 10 September 1833) was a Slovene Lutheran teacher and poet in Hungary.

He was born in Večeslavci (Prekmurje), near the Styrian border. His father was Iván Szijjártó, a Slovene peasant. Szijjártó studied in Nemescsó and in Sopron, at the Lutheran lyceum (?–1783). He taught in Križevci from 1787 to 1806 in Puconci.^{[clarification needed]} He later worked in Domanjševci, where he died.

In 1796, his hymnal Mrtvecsne Peszmi (Dirges) was published.

• Mrtvecsne Peszmi (Dirges), 1796
• Molitvi na sztári szlovenszki jezik obrnyene (Prayers Translated into Old Slovene), 1797
• Sztarisinsztvo, i zvacsinsztvo (Marriage and Wedding), 1807
• Sztarisinsztvo i zvacsinsztvo, 1852

• List of Slovene writers and poets in Hungary

• Anton Trstenjak: Slovenci na Ogrskem, Narodnapisna in književna črtica, Objava arhivskih virov Maribor 2006. ISBN 961-6507-09-5