Cognomen 其 (Ki 
, 其 
, Kei , among others...) , all over the world, is a widespread family name. The cognomen 其 is characteristic of Hong Kong, where it is quite a common surname, Macao, and Cayman Islands (explore the name in all countries). Not in comparison with a country's population, it most frequently occurs in India, China, and Myanmar. Likewise, 其 is the forename as well as the last name.