Ivan Dumbadze's father, Anton Dumbadze, came from a commoner family, however the maiden name of Ivan's mother, Nakashidze (), is possibly of a noble Georgian tavadi origin, from the province of Guria (in the 19th century an ujezd of the Kutaisi governorate) [REF].
All three brothers of Ivan Dumbadze - Joseph, Nicholas and Samson - also became Major-Generals in the Russian army.