The Fourth Football League Rijeka or Četvrta nogometna liga Rijeka (Croatian), or simply 4.
NL Rijeka, is a fifth tier league competition in the Croatian football league system.
The league was formed in 2014, after two divisions of 3.
HNL West, resulting in relegation of numerous clubs.
The league covers clubs from Istria County, Primorje-Gorski Kotar County and Lika-Senj county.