Odorheiu Secuiesc

History of the professional football started in Odorheiu Secuiesc in 1922, when it was founded the first team of the city, Textila. For nearly fifteen years, the club competed in the district and regional championships without achieving any notable results, but that was about to change in the summer of 1968 when, after a strong campaign, Lemnarul Odorheiu Secuiesc earned its first-ever promotion to Divizia C by winning Series II of the Mureș Regional Championship

In their debut season in the third division, Lemnarul finished 4th out of 16 in Series VIII. The following year saw a 5th-place finish in the same series, followed by another 4th-place finish in Series VIII during the 1970–71 season. Renamed Textila, the club maintained its competitive form, finishing 4th once again in Series XII in the 1971–72 season, and then securing 2nd place in Series XI at the end of the 1972–73 campaign, just behind Gaz Metan Mediaș, thus earning promotion to Divizia B for the first time in its history. This beautiful dream lasted only one season, as Textila proved unprepared for the challenges of this level, finishing 17th out of 18 teams under the leadership of Tiberiu Bone.

In the summer of 1974, after the relegation from Divizia B, the leadership of the club decided to bring some fresh air inside the team and one of the measures was to change its name, from Textila Odorheiu Secuiesc to Progresul Odorheiu Secuiesc. After being ranked 8th at the end of the 1974–75 season, followed another second place in 1976, but this time was not a promoting place, the neighbors from Oltul Sfântu Gheorghe being the team which was going up. After four seasons in which at its best the team was ranked 3rd, Progresul finished again second, two times in a row, at the end of the 1980–81 and 1981–82 seasons, first time behind ICIM Brașov, then right after Precizia Săcele. In these conditions when the team seemed to force the promotion to the second tier again, relegated unexpectedly in 1983, after finishing 15th of 16. Interestingly, it's the same year in which the other team from Harghita County, Tractorul Miercurea Ciuc also relegated. Progresul promoted back after only one year of absence and for the next seven years imposed itself as a strong opponent, being ranked generally in top five of its series, two times even finishing in second place (1987–88 and 1988–89).

In the summer of 1991, the club changed its name again, this time from Progresul Odorheiu Secuiesc to Harghita Odorheiu Secuiesc. Odorheienii continued their Divizia C spell but at its best, the team was ranked third. After two weak seasons, 1996–97 – 15th and 1997–98 – 18th, the team has gone through some administrative changes and in the summer of 1998 changed its name from Harghita Odorheiu Secuiesc to Budvar Odorheiu Secuiesc. In six years as "Budvar" the team finished only one time in top 10 (2000–01 – 5th), the mediocre results culminating in a relegation to Divizia D at the end of the 2003–04 season, after exactly 20 years spent in the third tier. During the next two years the football from the city struggled to survive, in 2006, the team of SC Roseal SA company, CS Roseal Odorheiu Secuiesc promoted to Liga III, but can't survive at this level and after only one season relegated back.

On 12 December 2006, at the initiative of some local football managers and supporters, a new entity, named AFC Odorheiu Secuiesc, was founded to be the successor of the old club, known over time as Textila, Progresul, Harghita or Budvar. The founding members of the football club, in its current form, were: Csaba Albert, Lajos Balázs, Attila Berkeczi, Csaba Dénes and Domokos Jankó.

Odorheienii promoted to Liga III at the end of 2008–09 season, but after only three seasons relegated back to Liga IV, in the last one, 2011–12, being even excluded from the league until the winter break due to financial problems. After another three seasons spent in the county league, the Székelys promoted to the third tier in 2015 after winning its county league and the promotion playoff match against Nemere Ghelința, Covasna County champions, 7–1 on aggregate.

After promotion the black and orange team obtained the following rankings: 12th (2015–16), 12th (2016–17) and 11th (2017–18).