Family name 贾克斯 (Jaques 
, Jax 
, 贾克斯 
) , all around the world, is a common cognomen. The surname 贾克斯 is characteristic of Guatemala, where it is quite a rare surname, Switzerland, and New Zealand. Not in comparison with a country's population, it is commonest in Brazil, the United States, and the United Kingdom. Also, 贾克斯 is the forename as well as the last name.