Last name 莱西 (Lacey 
, Lacy , 莱西 
) , worldwide, is a common cognomen. The family name 莱西 is characteristic of Guernsey, where it is quite a common surname, Ireland, and Australia (explore the name in all countries). Measured by absolute frequency, it most frequently occurs in the United States, the United Kingdom, and Australia. Likewise, 莱西 is the forename as well as the last name.