Nonna (Russian:Нонна) is a rare Russian feminine name. There are two versions of its origins.
A variant of Latin feminine name Nona (lit. "ninth").
A diminutive form of "Noyabrina." Noyabrina (Russian:Ноябрина) and similar name Oktyabrina (Russian:Октябрина). The two new Soviet names refer to November and October, and the Russian October Revolution, which is traditionally dated to 25 October 1917 Old Style Julian calendar (O.S.), which corresponds with 7 November 1917 New Style (N.S.) Gregorian calendar.