| Lilian Astier | |
| Birth Date: | 12 August 1978 |
| Birth Place: | Le Puy-en-Velay, France |
| Height: | 1.72 m |
| Position: | Defender |
| Years1: | 1995–1998 |
| Years2: | 1998 |
| Years3: | 1999–2000 |
| Years4: | 2000–2001 |
| Years5: | 2001–2008 |
| Years6: | 2008–2010 |
| Years7: | 2010–2011 |
| Clubs1: | Saint-Étienne |
| Clubs2: | → Burgos (loan) |
| Clubs3: | Olympique Alès |
| Clubs4: | AS Béziers |
| Clubs5: | Libourne |
| Clubs6: | FC Mulhouse |
| Clubs7: | AS Béziers |
| Caps1: | 9 |
| Caps2: | 6 |
| Goals1: | 1 |
| Goals2: | 0 |
| Nationalyears1: | 1997 |
| Nationalteam1: | France U18 |
Lilian Astier (born 12 August 1978) is a French former professional footballer who played as a defender.
Born in Le Puy-en-Velay, Astier had a promising start to his football career. He trained with the youth teams of Saint-Étienne, and would make his professional debut with the senior club in Ligue 2. After failing to break into Saint-Étienne's first team, he was sent with his compatriot Johann Duveau on a short-term loan to play for Burgos CF in Segunda División B.[1] After his loan expired, Saint-Étienne canceled his contract and he attempted to join OGC Nice. However, his contract with Nice wasn't approved by the league.[2]
Outside of two seasons in Ligue 2 with FC Libourne-Saint-Seurin, Astier would spend the remainder of his career playing in the third and fourth level of French football.
Astier won the 1997 UEFA European Under-18 Championship with France.