| Office1: | Leader of Inspection Team, Central Military Commission to the Armed Police Force |
| Term Start1: | May 2016 |
| Office2: | Political Commissioner of National University of Defense Technology |
| Term Start2: | December 2005 |
| Term End2: | July 2010 |
| Predecessor2: | Huang Xianzhong |
| Successor2: | Wang Jianwei |
| Office3: | Political Commissioner of South Sea Fleet |
| Term Start3: | December 2004 |
| Term End3: | December 2005 |
| Predecessor3: | Tong Shiping |
| Successor3: | Huang Jiaxiang |
| Xu Yitian | |
| Native Name Lang: | zh |
| Birth Place: | Republic of China |
| Party: | Chinese Communist Party |
| Alma Mater: | PLA Naval University of Engineering |
| Serviceyears: | – |
| Rank: | Vice Admiral |
Xu Yitian (; born November 1947) is a vice admiral (zhongjiang) of the People's Liberation Army Navy (PLAN) of China. He attained the rank of rear admiral (shaojiang) in July 1999, and was promoted to the rank of vice admiral (zhongjiang) in July 2006.
Xu was born in November 1947. He graduated from PLA Naval University of Engineering. After graduation, he served in the North Sea Fleet.[1] In December 2004, he was appointed Political Commissioner of South Sea Fleet and Deputy Political Commissioner of Guangzhou Military Region, replacing Tong Shiping. He was Political Commissioner of National University of Defense Technology in December 2005, and held that office until July 2010. In May 2016, he was appointed Leader of Inspection Team, Central Military Commission to the Armed Police Force.[2]
He was a member of the 13th Standing Committee of the Chinese People's Political Consultative Conference. He was an alternate member of the 17th Central Committee of the Chinese Communist Party.