It is common across Europe, specifically countries in Southeast Europe such as Bosnia and Herzegovina, Croatia, Serbia, and Slovenia.
Kovač is a common surname in Croatia, with 9,614 carriers (2011 census),[1] most of them living in northern and eastern parts of the country.
Outside Europe, the surname is fairly common in the United States (especially Texas and California), Canada, and South America.
The Romanian form is Covaci, and it is also a relatively frequent surname in Romania.
The derivative forms Kovačić or Slovenian Kovačič, as well as Kovačević and Bulgarian Kovachev, are also very common.