Asociația Fotbal Club Odorheiu Secuiesc, commonly known as AFC Odorheiu Secuiesc (Hungarian: Szekelyudvarhely FC) or simply Odorheiu Secuiesc, is a professional Romanian football club based in Odorheiu Secuiesc, Harghita County and also geographically placed in the historic and ethnographic region of Szekely Land, an area inhabited mainly by Szekelys, a subgroup of the Hungarian people.
The team was founded in 1922 as Textila Odorheiu Secuiesc and played for most of its existence in the third tier of the Romanian football league system. The only period in Liga II was spent during the 1973–74 season when the club was ranked 17th of 18 and was relegated back to Liga III. In 2004 the club was relegated to Liga IV and after some struggles, it was declared bankrupt and dissolved. On 12 December 2006, the new entity, AFC Odorheiu Secuiesc, was founded in order to try to ensure the continuity of the football tradition in Odorheiu Secuiesc. The club was recognized and accepted unanimously by supporters thus becoming the official successor of the old entity, Textila Odorheiu Secuiesc.