| Daniel Westmattelmann | |
| Fullname: | Daniel Westmattelmann |
| Birth Date: | 31 October 1987 |
| Birth Place: | Ahlen, Germany |
| Height: | 1.86 m |
| Weight: | 75 kg |
| Currentteam: | RSV Münster |
| Discipline: | Road |
| Role: | Rider |
| Ridertype: | Time trialist |
| Amateuryears1: | 2004–2006 |
| Amateurteam1: | RSG Harsewinkel |
| Amateuryears2: | 2004 |
| Amateurteam2: | RSV Nordrhein-Westfalen |
| Amateuryears3: | 2005–2006 |
| Amateurteam3: | RG König Pilsener |
| Amateuryears4: | 2019– |
| Amateurteam4: | RSV Münster |
| Proyears1: | 2007 |
| Proteam1: | Akud Rose |
| Proyears2: | 2008 |
| Proyears3: | 2009 |
| Proteam3: | Seven Stones |
| Proyears4: | 2010–2018 |
Daniel Westmattelmann (born 31 October 1987 in Ahlen) is a German road racing cyclist,[1] who currently rides for German amateur team RSV Münster.