Family name Давачи (Davachi 
, Давачи 
) , in the world, is a rare cognomen. The cognomen Давачи is habitual in Sweden, where it is a rare surname, Iran, where it is a very rare surname, and New Zealand. In absolute terms, this name is the most popular in Iran, the United States, and Sweden. Much less frequently, Давачи is the forename as well as the last name.