Gagarin, known until 1968 as Gzhatsk (Гжатск), is a town and the administrative centre of Gagarinsky District of Smolensk Oblast, Russia, located on the Gzhat River, 240 kilometers (150 mi) northeast of Smolensk, the administrative centre of the oblast. Population: 31,721 (2010 Russian census); 28,789 (2002 Census); 28,867 (1989 Soviet census).

Yuri Alekseyevich Gagarin was a Soviet pilot and cosmonaut who, aboard the first successful crewed spaceflight, became the first human to journey into outer space. Travelling on Vostok 1, Gagarin completed one orbit of Earth on 12 April 1961, with his flight taking 108 minutes. By achieving this major milestone for the Soviet Union amidst the Space Race, he became an international celebrity and was awarded many medals and titles, including the nation's highest distinction: Hero of the Soviet Union.