| Lohan Jacobs | |
| Fullname: | Willem Johannes Jacobs |
| Birth Date: | 23 April 1991 |
| Birth Place: | Krugersdorp |
| Weight: | 880NaN0 |
| School: | Afrikaanse Hoër Seunskool |
| University: | Unisa |
| Position: | Scrum-half |
| Youthyears1: | 2004–2012 |
| Years1: | 2011–2014 |
| Apps1: | 23 |
| Points1: | 10 |
| Years2: | 2015 |
| Apps2: | 10 |
| Points2: | 8 |
| Years3: | 2015 |
| Apps3: | 1 |
| Points3: | 0 |
| Amatyears1: | 2012–2013 |
| Amatapps1: | 11 |
| Amatpoints1: | 15 |
| Repyears1: | 2009 |
| Repteam1: | SA U18 High Performance |
| Repyears2: | 2010–2011 |
| Repteam2: | South Africa U20 |
| Repcaps2: | 6 |
| Reppoints2: | 0 |
| Clubupdate: | 2 November 2015 |
| Repupdate: | 22 May 2015 |
Willem Johannes 'Lohan' Jacobs is a South African rugby union player, who most recently played with the . His usual position is scrum-half.
At youth level, he represented at various levels, all the way from U13 Craven Week level in 2004 to U21 Currie Cup level in 2012.
He made his debut for the first team as a last-minute substitute in the Blue Bulls' 35–7 defeat to in the 2011 Currie Cup Premier Division. He got his first start in Blue Bulls colours in the Vodacom Cup game against in 2012.
He moved to Johannesburg for the 2015 to join the .[1]
He also played for in the 2012 Varsity Cup, scoring three tries in eight appearances for the eventual champions.
He played for the South Africa U20 team at the 2010 IRB Junior World Championship in Argentina.