Family name 雷格 (Reg 
, Reig 
, Reger ) , in all the world, is a common last name. The cognomen 雷格 is habitual in Andorra, where it is quite a common surname, Liechtenstein, and Spain, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in Germany, the United States, and Spain. Likewise, 雷格 is the forename as well as the last name.