Clubul Sportiv Municipal Unirea Alba Iulia, commonly known as Unirea Alba Iulia (Romanian pronunciation: [uˈnire̯a ˌalba ˈjuli.a]), is a Romanian professional football club based in Alba Iulia, Alba County, founded in 1924 and currently playing in the Liga III.

Among the greatest achievements of the team is a sixth place in the first league at the end of the 2003–04 season and a Romanian Cup semi-final played in 1991.

The team colours are black and white, and their stadium is called Cetate and has a capacity of 18,000 seats.

Unirea Alba Iulia was founded in 1924. In the beginning the team was called Unirea Mihai Viteazul Alba Iulia. After ten years, they managed to qualify and play in the second league where they managed to obtain the sixth place.

They played in the second league until the year 1939 when they were relegated to the third league. In 1942, they returned to the second league where they played two seasons and then were relegated again. At the end of season 1946–1947 we find the team in the third league in a relegating position. From 1947 until 1970 the team plays in the regional championships, under the level of the first three leagues of Romanian professional football.

In 1970 the team promotes to the third league. After nine seasons played in the third league, they managed to promote in the second league. In the season 1979–1980 the team finished in the first spot beyond the relegation line.

They played another four years in the third league, after that, they promoted in the second league where they played for two years and were relegated again, and after another two years they promoted again.

Between 1988 and 2003 seasons they played in the second league. In the 1990–91 Cupa României edition the team reached the semi-finals and in the 1993–94 Divizia B season they placed themselves on the second position at only 7 points behind the first place FC Maramureş Baia Mare, both performances being obtained under coach Cornel Țălnar.