Ulyanovsk Region is a subject of the Russian Federation with a provincial capital in Ulyanovsk in the Volga federal district. Ulyanovsk Region shares borders with such regions as Samara region (on the East), Saratov Region (on the South), Penza Region and Republic of Mordovia (on the west), Chuvash Republic (Chuvashia) and Republic of Tatarstan (on the north).

Ulyanovsk Region was formed as a subject of Russian Federation on the January, 19, 1943.