| József Heszlényi | |
| Birth Date: | 1890 7, df=yes |
| Birth Place: | Igló, Szepes County, Kingdom of Hungary (now Spišská Nová Ves, Slovakia) |
| Death Place: | Zwettl, Allied-occupied Austria |
| Placeofburial: | German War Cemetery in Allentsteig, Lower Austria |
| Allegiance: | (to 1918)  Kingdom of Hungary |
| Branch: | Austro-Hungarian Army Royal Hungarian Army |
| Serviceyears: | 1911–1945 |
| Rank: | Vezérezredes (Colonel General) |
| Commands: | IV Corps Third Army |
| Battles: | World War I----World War II |
József Vitéz Heszlényi (Heyszl; 24 July 1890 – 2 June 1945) was a Hungarian General during World War II and commander of the 3rd Hungarian Army.
He graduated from the Imperial and Royal Technical Military Academy in 1911.
On 8 May 1945, Heszlényi, along with his son, József Heszlényi Jr., who served on the staff of his father, were captured by American troops. Heszlényi was then handed over to the Soviets, where he committed suicide by cutting his wrists with a razor blade on 2 June 1945 in Zwettl, Austria. On 19 June 1945 a military tribunal posthumously demoted and dishonorably discharged Heszlényi from the Hungarian Army.