| Arsène Mersch | |
| Fullname: | Arsène Mersch |
| Birth Date: | 14 December 1913 |
| Birth Place: | Koerich, Luxembourg |
| Death Place: | Koerich, Luxembourg |
| Discipline: | Road, Cyclo-cross |
| Role: | Rider |
| Majorwins: | national road race champion (2x) national cyclo-cross champion one stage Tour de France |
Arsène Mersch (14 December 1913, in Koerich - 11 July 1980, in Koerich) was a Luxembourgish professional road bicycle racer and cyclo-cross racer, who became national champion in both categories twice. He also won one Tour de France stage, and wore the yellow jersey for one day.