Milin is of Slavic origin, specifically from Bulgarian and Serbian cultures. It is a diminutive form of the name Milica, which means 'dear' or 'kind'. This name gained popularity in the late 20th century in Bulgaria, but it remains less common outside of its cultural sphere.
"Milin had 5 births in 2004, 6 in 2005, and another 5 in 2016."