Last name 洛希 (Lohi 
, 洛希 
, Loesch 
) , all around the world, is a common surname. The last name 洛希 is habitual in Finland, where it is quite a common surname, Luxembourg, and Austria, where it is quite a rare surname. Measured by absolute frequency, it is commonest in the United States, Germany, and India. Very seldom, 洛希 is the forename as well as the last name.