István Blazsetin (in Croatian: Stipan Blažetin) (Hercegszántó, Hungary, October 24, 1941 – Pécs, Hungary, March 4, 2001) was a Croatian writer, cultural worker and pedagogue from Hungary.
According to some authors, he is considered to be a Croatian writer from Vojvodina, Serbia.
He wrote poetry, novels and children's literature.
Blažetin was an important collector of oral literature heritage of the Pomurje Croats.