Tomaszów Lubelski (Ukrainian: Томашів, Tomashiv) is a town in south-eastern Poland with 20,261 inhabitants (2004). Situated in the Lublin Voivodeship (since 1999), previously in Zamość Voivodeship (1975-1998), near Roztocze National Park. It is the capital of Tomaszów Lubelski County.