Family name นิลสัน (Nillson 
, นิลสัน 
) , in the world, is a rare cognomen. The family name นิลสัน is habitual in Sweden, where it is a rare surname, Australia, where it is a very rare surname, and Greece. In absolute terms, it most frequently occurs in Sweden, Thailand, and Australia. Much less frequently, นิลสัน is the forename as well as the last name.