In the entire world, 怀彦 (怀彦 
, Huaiyan 
) is a rare principally male, but very seldom female first name. The first name 怀彦 is characteristic of Eastern Asia, particularly China, where it is a very rare principally masculine, but very infrequently girly name. Much less frequently, 怀彦 is the last name as well as the forename.