| Denis Lhuillier | |
| Fullname: | Denis Lhuillier |
| Birth Date: | 9 October 1973 |
| Birth Place: | Évreux, France |
| Height: | 1.82 m |
| Position: | Defender |
| Years1: | 1991–1992 |
| Years2: | 1992–1996 |
| Years3: | 1996–1997 |
| Years4: | 1997–1998 |
| Years5: | 1998–2001 |
| Years6: | 2001–2005 |
| Clubs1: | Rouen |
| Clubs2: | Chamois Niortais |
| Clubs3: | Fécamp |
| Clubs4: | Lucé |
| Clubs5: | Chartres |
| Clubs6: | FC Chauray |
| Caps2: | 18 |
| Goals2: | 0 |
| Managerclubs1: | FC Chauray |
| Manageryears1: | 2005–2014 |
| Managerclubs2: | OL Saint-Liguaire |
| Manageryears2: | 2015–2020 |
| Managerclubs3: | ES Ardin |
| Manageryears3: | 2021–2022 |
| Managerclubs4: | FC Autize |
| Manageryears4: | 2022– |
Denis Lhuillier (born 9 October 1973) is a French football manager and former player who played as a defender. He was most recently manager of Régional 1 club OL Saint-Liguaire. Il entraîne actuellement le FC Autize.