Yining (Gulja) (simplified Chinese: 伊宁; traditional Chinese: 伊寧; pinyin: Yīníng, alt. spelling: Ining), also known as Ghulja City (alt. spellings: Ĝulja, Kuldja and Kulja, (Uyghur: غۇلجا‎; Chinese: 固勒扎; pinyin: gùlèzhā; Kazakh: قۇلجا), as well as Ili or Yili, is a county-level city in western Xinjiang Uighur Autonomous Region of northwestern China, and the capital of the Ili Kazakh Autonomous Prefecture. Historically, Yining is the succcessor to the ruined city of Almaliq in Huocheng County.

Its name variant Kulja was also a name of the Ili region in the past.

Administratively, the City of Yining is a county-level administrative unit. As of 2004, it occupied 629 km² (243 sq mi), with the population of 430,000 people. The city is located at the elevation of about 640 metres (2,100 ft).

The land area and population of the City of Yining were smaller before 2004; the increase resulted from the transfer of two villages with some 100 km² (39 sq mi) of land from the adjacent Yining County, which is a separate administrative unit from the City of Yining.