Ganja is Azerbaijan

Azerbaijan

Azerbaijan , officially the Republic of Azerbaijan is the largest country in the Caucasus region of Eurasia. Located at the crossroads of Western Asia and Eastern Europe, it is bounded by the Caspian Sea to the east, Russia to the north, Georgia to the northwest, Armenia to the west, and Iran to...

's second-largest city with a population of around 313,300. It was named Yelizavetpol in the Russian Empire period. The city regained its original name—Ganja—from 1920–1935 during the first part of its incorporation into the Soviet Union

Soviet Union

The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....

. However, its name was changed again and called Kirovabad during the later Soviet Union period from 1935 to 1991. Finally, the city regained the original name after Azerbaijan's independence in 1991.
Modern historians believe that the name Ganja (گنجه / Ganjeh) derives from the New Persian ganj (گنج: "treasure, treasury") and suggests that the city existed in pre-Islamic times and was likely founded in the 5th century A.D.