Changling County (simplified Chinese: 长岭县; traditional Chinese: 長嶺縣; pinyin: Chánglǐng Xiàn) is a county in the northwest of Jilin province, China, bordering Inner Mongolia to the west.

It is the southernmost and westernmost county-level division of the prefecture-level city of Songyuan, with a population of 640,000[when?]

Changling has a monsoon-influenced humid continental climate (Köppen Dwa) characterised by hot, humid summers, due to the monsoon, and long, very cold and dry winters, due to the Siberian anticyclone.

A majority of the annual rainfall occurs in July and August.

The monthly 24-hour average temperatures ranges from −15.2 °C (4.6 °F) in January to 23.6 °C (74.5 °F) in July, while the annual mean is 6.0 °C (42.8 °F).