| Nikolai Blignaut | |
| Fullname: | Hendrik Nikolai Blignaut |
| Birth Date: | 10 January 1985 |
| Birth Place: | East London, South Africa |
| Weight: | 1100NaN0 |
| School: | Baysville Secondary School, East London |
| University: | Oakridge College, Durban |
| Position: | Lock |
| Currentclub: | College Rovers |
| Youthyears1: | 2002 |
| Youthyears2: | 2004–2006 |
| Years1: | 2005–2009 |
| Apps1: | 41 |
| Points1: | 15 |
| Years2: | 2010 |
| Apps2: | 14 |
| Points2: | 5 |
| Years3: | 2014 |
| Apps3: | 4 |
| Points3: | 0 |
| Amatyears1: | 2013–present |
| Amatteam1: | College Rovers |
| Amatapps1: | 18 |
| Amatpoints1: | 15 |
| Repyears1: | 2004 |
| Repteam1: | South Africa Under-19 |
| Repyears2: | 2005–2006 |
| Repteam2: | South Africa Under-21 |
| Repcaps2: | 10 |
| Reppoints2: | 0 |
| Repyears3: | 2007 |
| Repteam3: | Emerging Springboks |
| Repcaps3: | 2 |
| Reppoints3: | 0 |
| Clubupdate: | 7 April 2015 |
| Repupdate: | 24 March 2015 |
Hendrik Nikolai Blignaut (born 1 October 1985 in East London, South Africa) is a rugby union player for club side College Rovers. He previously played provincial rugby for the and and usually plays as a lock or flanker.