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The Romen River (Ukrainian: Ромен; Russian: Ромен) is a right tributary of the Sula River with a length of 111 km and a drainage basin of 1,645 km². It begins in the northern Ukrainian Oblast of Chernihiv and flows into the Sula River near the Sumy Oblast city of Romny. The average discharge quantity amounts to 3 m³/s at the delta.
The name is of Baltic origin; cf. Lithuanian romus 'quiet'.
- ^ E.M. Pospelov, Geograficheskie nazvaniya mira (Moscow, 1998), p. 355.
Coordinates: 50°44′44″N 33°30′15″E / 50.74556°N 33.50417°E