Cognomen ヘザー (Heather 
, ヘザー 
, Haerther 
) , across the world, is quite a common last name. The cognomen ヘザー is habitual in New Zealand, where it is quite a rare surname, Ireland, and Australia. Measured by absolute frequency, it most frequently occurs in the United States, the United Kingdom, and Australia. Much more prevalently, ヘザー is the forename as well as the last name.