Komitat Fejér
The supporters of the club are based in Székesfehérvár, in Fejér County, Hungary. One of the group of supporters is the Red Blue Devils which is considered the main ultras of the team (there are smaller groups like Red-Blue City, Sóstói Hableányok, G-pont). Fehérvár FC is in rivalry with the most famous Hungarian clubs such as Ferencváros, Újpest, Győri ETO, Haladás, and Debrecen. The club has a local rival, Puskás Akadémia FC, based in Felcsút, Fejér County, but the rivalry is relatively tame. These two clubs had a stadium share in Felcsut while Fehérvár's stadium was under renovation, 2016–18. Fejer county's second most populated city is Dunaújváros, but Dunaferr FC, formerly based there, no longer exists. Between 1997 and 1999, Videoton's local rival was Gázszer FC which was based in Agárd, Fejér County.