A. China
B. United States
C. Kosovo
D. France
Details About What country with the most last names:
France has the most last names in use, with 900,000 last names currently registered. Just to compare, China has 19x more people but only has 4,000 last names for 99.9% of people, and 100 names make up 85% of the population. The reason for France having so many last names is the origin of last names. Most got them off of jobs, such as “Smith” for the blacksmith. France has that but made numerous variants over time.