Last name دلسوز (دلسوز 
) , in the entire world, is quite a common surname. The family name دلسوز is characteristic of Afghanistan, where it is quite a common surname, United Arab Emirates, where it is a rare surname, and Iran. Measured by absolute frequency, this name is the most popular in Afghanistan, Iran, and Iraq. Much less frequently, دلسوز is the forename as well as the last name.