River Rom

Rom
Beam
River Beam at Dagenham
Location
CountryEngland
CountiesGreater London
London boroughsHavering, Barking and Dagenham
TownsRomford
Physical characteristics
Source 
  locationRomford
Mouth 
  location
River Thames, Dagenham
  coordinates
51°30′45″N 0°9′33″E / 51.51250°N 0.15917°E / 51.51250; 0.15917
Discharge 
  locationBretons Farm
  average0.34 m3/s (12 cu ft/s)
  minimum0.03 m3/s (1.1 cu ft/s)22 August 1976
  maximum17.8 m3/s (630 cu ft/s)2 October 1993
Basin features
Tributaries 
  leftThe Ravensbourne

The River Rom, also known as the River Beam below its confluence with the Ravensbourne, is a tributary of the River Thames in England that flows through the east London suburbs around Romford before joining the Thames at Dagenham.

Part of the river forms a section of the boundary between the London boroughs of Barking and Dagenham and Havering. The Rom is culverted as it passes through the centre of Romford.