Yan (Chinese: 燕; pinyin: Yān), also known as the Great Yan (Chinese: 大燕; pinyin: Dà Yān), was a dynastic state of China established in 756 by the former Tang general An Lushan, after he rebelled against Emperor Xuanzong of Tang in 755.

The state collapsed in 763 with the death of An Lushan's former subordinate Shi Chaoyi (son of Shi Siming), who was the last person to claim the title as emperor of Yan.

(安祿山) (安慶緒) (史思明) (史朝義) An Lushan (10 February 703 – 29 January 757, age 54)[3][4] ruled a Jiedushi under Xuanzong and rebelled on 16 December 755.

[6][4] Shi Siming (703–761, age 58), a lieutenant under An Lushan, succeeded An Qingxu.

He committed suicide after losing Luoyang to Li Huaixian.