Family name 洛吉 (Logie 
, Loggie 
, 洛吉 
) , throughout the world, is quite a rare surname. The cognomen 洛吉 is habitual in Grenada, where it is quite a common surname, Jersey, and Trinidad and Tobago, where it is quite a rare surname. Measured by absolute frequency, it is the most numerous in the United Kingdom, the United States, and France. Very seldom, 洛吉 is the forename as well as the last name.