| Twan Castelijns | |
| Fullname: | Twan Castelijns |
| Birth Date: | 23 January 1989 |
| Birth Place: | Hapert, North Brabant, Netherlands |
| Height: | 1.80 m |
| Weight: | 70 kg |
| Currentteam: | Retired |
| Discipline: | Road |
| Role: | Rider |
| Amateuryears1: | 2011 |
| Amateurteam1: | TWC Snelle Het Wiel |
| Amateuryears2: | 2012–2013 |
| Amateurteam2: | Baby-Dump–Lemmerns–Wilvo |
| Amateuryears3: | 2015 |
| Amateurteam3: | (stagiaire) |
| Proyears1: | 2014 |
| Proyears2: | 2015 |
| Proyears3: | 2016–2017 |
Twan Castelijns (born 23 January 1989 in Hapert, North Brabant, Netherlands) is a Dutch former cyclist, who rode professionally between 2014 and 2017 for the, and squads.[1] During his career, he contested two Grand Tours; the 2016 Giro d'Italia,[2] and the 2017 Giro d'Italia.
| Grand Tour | 2016 | 2017 | |
|---|---|---|---|
| Giro d'Italia | 114 | 130 | |
| Tour de France | — | — | |
| Vuelta a España | — | — |
| — | Did not compete | |
|---|---|---|
| DNF | Did not finish |