| Hangul: | 한국대학생연합 or 한대련 |
| Hanja: | 韓國大學生聯合 or 韓大聯 |
| Rr: | Hanguk Daehaksaeng Yeonhap or Handaeryeon |
| Mr: | Han'guk Taehaksaeng Yŏnhap or Handaeryŏn |
21C Korea College Students' Union (21세기 한국대학생연합) or Handaeryeon (한대련) is a leftist student organization in South Korea. It is the largest student organization in South Korea.
| Cardinal | Year | Name | University | Note | |
|---|---|---|---|---|---|
| Promotion committee | March 7, 2004 | Gim Dong-jae | Dong-A University President of the student body | Chairman of propulsion | |
| 1st | April 30, 2005 | Kim Mi-sook | Duksung Women's University President of the student body | ||
| 2nd | January 19, 2006 | Gang Jeong-nam | Pusan National University President of the student body | ||
| 3rd | February 1, 2007 | Kim Ji-sun | Duksung Women's University President of the student body | ||
| 4th | February 1, 2008 | Gang Min-uk | Kwangwoon University President of the student body | ||
| 5th | February 6, 2009 | Lee Won-gi | Pusan National University President of the student body | ||
| 6th | February 5, 2010 | Kim Yu-ri | Chungnam National University President of the student body | ||
| 7th | 2011 | Park Ja-eun | Sookmyung Women's University President of the student body | ||
| 8th | 2012 | Jung Yong-pil | Kyunghee University President of the student body | ||
| 9th | 2013 | Kim Na-rae | Kyunghee University President of the student body | ||
| 10th | 2014 | Jang Min-gyu | Chungnam National University President of the student body | ||
| 11th | 2015 | Kim Han-sung | Chungnam National University President of the student body |