| Jules Masselis | |
| Fullname: | Jules Masselis |
| Birth Date: | 1886 11, df=yes |
| Birth Place: | Ledegem, Belgium |
| Death Place: | Roeselare, Belgium |
| Discipline: | Road |
| Role: | Rider |
Jules Masselis (Ledegem, 19 November 1886 – Roeselare, 29 July 1965) was a Belgian professional road bicycle racer, who won two stages in the Tour de France and was leading the general classification for two nonconsecutive days.