Nanjing Normal University (NJNU; Chinese: 南京师范大学; pinyin: Nánjīng Shīfàn Dàxué) is a provincial public university in Nanjing, Jiangsu, China. It is affiliated with the Province of Jiangsu, and co-sponsored by the Ministry of Education and the provincial government. The university is part of the Double First-Class Construction and Project 211.

As of 2020, NNU has three campuses in Nanjing, namely Xianlin, Suiyuan, and Zijin. It consists of 28 colleges and schools with an enrollment of 18,369 undergraduates and 12,564 graduate students, including 1,525 doctoral candidates.

The history of Nanjing Normal University can be traced to 1902 with the establishment of Sanjiang Normal School (三江师范学堂). Sanjiang refers to a historical province in Qing dynasty that roughly covers three provinces in contemporary China: Jiangsu, Jiangxi, and Anhui. The college evolved into Liangjiang Advanced Normal School, National Nanjing Higher Normal School, National Southeastern University, National 4th Sun Yat-sen University, National Jiangsu University, National Central University, and Nanjing University in the following decades.

The other origin of Nanjing Normal University is the University of Nanking which was established in 1888 as Nanking Academy and developed into Private University of Nanking in 1910. It was the first institution in China officially named "university" in English and was registered with the New York State Education Department. In 1951, Private University of Nanking and Private Ginling College, were integrated into the National University of Nanking.

In 1952, as a result of the nationwide reorganization of higher education, some schools and departments of Nanjing University and University of Nanking were separated and merged to establish Nanjing Normal College (南京师范学院), which was set up on the former site of Ginling College. The college then exchanged several academic faculties and departments with Soochow University (Suzhou) in Jiangsu Province, establishing a more robust discipline system for both institutions. In 1984, Nanjing Normal College was renamed Nanjing Normal University (南京师范大学). In 1996, it became one of the first group of universities designated by the Ministry of Education of China in the list of former Project 211 for National Key Universities. In 2000, Nanjing Polytechnic of Power Engineering, a national polytechnic institute governed by the Ministry of Chemical Industry at the time, was incorporated into the university. It is included in the Double First-Class Construction.

Nanjing Normal University has three campuses throughout the urban and suburban areas of Nanjing, China. Nanjing was named among the best student cities in the world for studying abroad by Quacquarelli Symonds in 2019. It is one of the Four Great Ancient Capitals of China and the current capital of Jiangsu Province.

Suiyuan Campus (随园校区) (122 Ninghai Rd, Gulou District) is the historical site of the former Ginling College and has been designated as a "Major Historical and Cultural Site Protected at the National Level" of China. It is home to a number of classical Chinese buildings.

Xianlin Campus (仙林校区) (1 Wenyuan Rd, Qixia District), located in Xianlin University City, is the main campus of Nanjing Normal University. Established in 2001, it is the newest and largest campus. It occupies an area of 346.7 hectares and is divided into four parts, east, west, north and south, having the majority of undergraduate students study here. The main library in the center of the campus, subsidized by Zhu Jingwen, is the largest single building library in Jiangsu Province.