Family name 吉加 (Giga 
, 吉加 
) , around the globe, is a common last name. The family name 吉加 is habitual in Georgia, where it is a common surname, Japan, where it is quite a rare surname, and Latvia. In absolute terms, it is commonest in Georgia, Japan, and India. Also, 吉加 is the forename as well as the last name.