Family name 洛克林 (Loughlin 
, Locklin 
, Lockling 
) , around the globe, is a common cognomen. The surname 洛克林 is habitual in Ireland, where it is quite a common surname, New Zealand, where it is quite a rare surname, and the United Kingdom. Measured by absolute frequency, it most frequently occurs in the United States, the United Kingdom, and Ireland. Much less frequently, 洛克林 is the forename as well as the last name.