Antonin Cartillier (born 23 June 2004) is a French professional footballer who plays as a left-back for club Rodez.
Career Cartillier was a youth player for his hometown club Blois before joining the Monaco under-17s in July 2019. He was the captain of the club's under-19s that reached the 2022 Championnat National U19 final, losing to Nantes. On 5 July 2022, he signed his first professional contract with Monaco. He made his Ligue 1 debut for the club in a 3–1 defeat at home to Reims on 13 January 2024. On 1 February 2024, Cartillier joined fellow Ligue 1 club Brest on loan until the end of the season. He was signed as a back-up for starting left-back Bradley Locko.
On 2 September 2024, Cartillier joined Championnat National club Orléans for no transfer fee, signing a contract until the end of the season.
On 2 July 2026, Cartillier signed a three-year contract with Rodez in Ligue 2.
Honours Monaco U19
Championnat National U19 runner-up: 2021–22
References