Last name ルカーシュ (Lukáš 
, ルカーシュ) , in all the world, is quite a rare family name. The cognomen ルカーシュ is habitual in Czechia, where it is quite a common surname, Slovakia, where it is quite a rare surname, and Germany, where it is an extremely rare surname. Much more prevalently, ルカーシュ is the forename as well as the last name.