Club Atletic Oradea

Club Atletic Oradea (Nagyváradi Atlétikai Club) (Romanian pronunciation: [ˌklub aˈtletik oˈrade̯a]), commonly known as CA Oradea (Nagyváradi AC), or simply as CAO (NAC), is a Romanian football club based in Oradea, Bihor County, which competes in the Liga IV.

The team was founded as Nagyváradi Atlétikai Club in 1910, when the city was part of Austria-Hungary. Over its history, Club Atletic Oradea won once the Hungary national title, the Romania national title and the Romania national cup. The Romanian title won in 1949, under the name of ICO Oradea, put the club based in Oradea in a select group of football clubs that won the national title in two different countries, together with Austrian side Rapid Wien, which also won the German national title, in 1941.

After World War II, CA Oradea came back in the Romanian championship, but now under the rule of communist regime, a fact that had a negative impact on the club's identity, mainly due to the ultra-nationalism of the communist leaders, who identified the football club as too connected with the Hungarian football and the Hungarian community. As a result, the club often changed its name and colors, to mislead and forget pre-communist memories. In 1945 Nagyváradi Atlétikai Club was renamed as Libertatea Oradea, then in 1948 as Întreprinderea Comunală Oradea (ICO), in 1951 as Progresul Oradea, in 1958 as CS Oradea and in 1961 as CSM Crișana Oradea (not to be confused with Crișana Oradea).

Dissolved in 1963, by the same communist regime, Club Atletic Oradea was re-established in the summer of 2017, as a football club ruled by a private management. In the same year CA Oradea was enrolled in the fifth tier (Liga V) and after only three years promoted back to the national divisions (Liga III), after 58 years of absence.