Hanyang University was ranked on the 2021 Leiden Ranking, which evaluates universities' quality level of theses. Hanyang University was ranked 6th in Korea among the top 10% of citations with 480 theses out of 6423 theses, which is also 877th within the world ranking. The thesis ratio is 7.5, which is 7th in Korea and 831st in the world. 

Leiden Ranking is the world university ranking announced from the Leiden University of the Netherlands, which evaluates the top 1%, 5%, 10%, 50% theses citation ratio among overall theses. With the combined total ranking, 5 other rankings of different fields such as biomedicine·public health, life·earth science, mathematics·computer engineering, natural·engineering sciences, social sciences·humanities were also announced. The world rankings of this year were conducted among 1225 universities from 2016 to 2019.

Hanyang University was ranked 3rd in Korea in the life·earth science field with a theses citation rate of 1.2%. Hanyang University was ranked 8th (0.4%) in social sciences·humanities, 11th (0.8%) in natural·engineering sciences, 24th (0.3%) in mathematics·computer engineering, and 8th (0.3%) in biomedicine·public health.

Meanwhile, within the top 10% of these numbers were Korean universities such as Seoul National University (1299), Yonsei University (777), KAIST (712), Sunkyunkwan University (623), and Korea University (608). In the world top 5 rankings were Harvard University (7246), Stanford University (3563), University of Toronto(3226), Tsinghua University (3018), University of Oxford (2991).