Tiszavasvári is a town in Szabolcs-Szatmár-Bereg county, in the Northern Great Plain region of eastern Hungary.
The settlement of Tiszavasvári was created in 1941 by merging the former independent settlements of Tiszabà ±d and Szentmihály under the name of Bà ±dszentmihály. The villagers of Tiszabà ±d opposed the merger and the two communities were separated in 1946 but only for four years. In 1950 the two settlements were again merged. The name of the locality was changed to Tiszavasvári in 1952 in memory of Pál Vasvári, a Hungarian writer and participant in the Hungarian Revolution of 1848.
It covers an area of and has a population of 13,473 people (2005).
Tiszavasvári is twinned with: