Kuvshinov
Kuvshinov (Кувшинов in Cyrillic) is a Russian surname. It is derived from the word "kuvshin" (кувшин), which means "pitcher" or "jug" in Russian. As a surname, it likely originated as an occupational name for someone who made or sold pitchers and jugs, or possibly as a descriptive name for someone associated with such objects in some way (e.g., living near a place where they were made).
The surname Kuvshinov is relatively common in Russia and other countries with significant populations of Russian descent. The name follows typical Russian surname formation patterns.