Last name Szalwa (Szalwa 
, شالوا) , all around the world, is a very rare surname. The family name Szalwa is characteristic of Poland, where it is a rare surname, the United Kingdom, where it is an extremely rare surname, and Canada. Measured by absolute frequency, it is commonest in Poland, the United Kingdom, and the United States. More prevalently, Szalwa is the forename as well as the last name.