RFK Novi Sad 1921

Founded in 1921 as NTK, the club was refounded in 1948 as FK Trgovački. They changed their name to FK Novi Sad in 1954. The club subsequently acquired the assets of NSK (formerly FK Eđšeg) through a merger in 1956.

In 1958, the club became part of newly formed Yugoslav Second League. Led by technical director Hugo Ruševljanin, they competed in Group East for three seasons, finishing as champions in 1960–61 to reach the Yugoslav First League for the first time ever. The club remained in the top flight of Yugoslav football until 1964. They subsequently spent two seasons in the Second League, finishing bottom of the table in 1965–66.

In 1966, the club merged with FK Radnički to form RFK Novi Sad. They finished as Serbian League North runners-up in 1966–67 before winning the title in 1967–68 to return to the Yugoslav Second League. The club spent the next 12 seasons in the second tier, including six seasons in Group North (1968–1974) and six seasons in Group West (1974–1980). They also reached the Yugoslav Cup semi-finals in 1976–77, losing to the eventual winners Hajduk Split. Later on, the club returned to the Second League after winning the Vojvodina League in 1982, remaining in the second tier until 1988.

After the breakup of Yugoslavia, the club advanced to the FR Yugoslavia Cup semi-finals in 1995–96. They also spent 14 consecutive seasons in the Second League of FR Yugoslavia/Serbia and Montenegro until 2006. The club promptly won the Serbian League Vojvodina in 2006–07 and took promotion to the Serbian First League. They competed in the second tier of Serbian football until 2013.

In 2014, the club was reformed as RFK Novi Sad 1921. They reached the Vojvodina League South in 2020. After winning the title in 2022, the club merged with FK Proleter Novi Sad, taking its Serbian First League spot.