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{{about|a river|the place|Zhukov, Kaluga Oblast}}
{{Infobox river
| name              = Protva
| native_name       ={{native name|ru|Протва}}
| image             = Protva south of highway 01.jpg
| image_caption     = Protva River in Borovsk
| subdivision_type1 = Country
| subdivision_name1 = [[Russia]]
| length_km = 282
| source1_location  = 
| source1_elevation = 
| source1_coordinates = 
| mouth             = [[Oka (river)|Oka]]
| mouth_elevation   = 
| mouth_coordinates = {{Coord|54|51|36|N|37|09|45|E|display=it}}
| discharge1_avg    = 
| progression       = {{ROka}}
| basin_size_km2 = 4620
| tributaries_left  = 
| tributaries_right = [[Luzha]]
}}

The '''Protva''' ({{Langx|ru|Протва}}) is a river in the [[Moscow Oblast|Moscow]] and [[Kaluga Oblast|Kaluga]] oblasts in [[Russia]]. It is a left [[tributary]] of the [[Oka (river)|Oka]]. It is {{convert|282|km}} long, and has a drainage basin of {{convert|4620|km2}}.<ref name=gvr>[http://textual.ru/gvr/index.php?card=178352 «Река ПРОТВА»], Russian State Water Registry</ref> The area of its [[drainage basin|basin]] is {{convert|4620|km2}}. The Protva freezes up in early December and stays icebound until early April. Its main tributary is the [[Luzha]]. The towns of [[Vereya]], [[Borovsk]], [[Protvino]] and [[Obninsk]] are located on the shores of the Protva.

==References==
{{Reflist}}

[[Category:Rivers of Kaluga Oblast]]
[[Category:Rivers of Moscow Oblast]]

{{MoscowOblast-geo-stub}}
{{KalugaOblast-geo-stub}}
{{Russia-river-stub}}