He will die at Ragnarok as will all other gods except Baldur, who will be resurected after Ragnarok.
Thor Henning died in 1967.
Thor Lund died in 1999.
Thor Myklebust died in 1989.
Thor Johnson died in 1975.
Thor Jensen died in 1976.
Thor Ørvig died in 1965.
Thor Knudsen died in 2006.
Thor Fossum died in 1993.
Thor Lange died in 1915.
Thor Gystad died in 2007.
Thor Vilhjálmsson died in 2011.
Thor Bjørklund died in 1975.