Rječina – Fjumara (Italian: Fiumara and Eneo) is a river in Croatia that flows into the Adriatic Sea in Rijeka.
It is about 19 km long, and its bed has an average width of 9-16 m; basen covers 243.1 km². It originates from a cave at an altitude of 325 m below the steep cliff of the Kičej hill (606 m).
