Born in 1947 in Mukachevo, Transcarpathia. In 1966 he graduated from the Republican Art School named after Shevchenko. In 1972 – graduated Kyiv State Institute of Art. In 1995 Szilvashi was awarded as "Artist of the Year" in Ukraine and obtained scholarship in Munich. His projects were presented at the International Art Festival in Kiev in 1996 and 1998.
Tiberiy Szilvashi works are in public and private collections in Munich, Vienna, New Jersey, Zaporizhia, Kharkiv, Uzhgorod, Kyiv and other cities of Europe and U.S.. Lives and works in Kyiv.