Obva
{{Infobox river
| name = Obva
| image =
| image_size =
| image_alt =
| image_caption =
| map = Kama basin.png
| map_size =
| map_alt =
| map_caption = Scheme of the Kama River Basin.
| source1_location = Upper Kama Upland
| mouth_location = Kama
| subdivision_type1 = Country
| subdivision_name1 = Russia
| progression = {{RKama}}
| length = {{convert|247|km|mi|abbr=on}}
| source1_elevation =
| mouth_coordinates = {{coord|58|32|20|N|55|27|06|E|source:kolossus-ruwiki|display=it}}
| discharge1_avg =
| basin_size = {{convert|6720|km2|sqmi|abbr=on}}
| river_system =
| tributaries_left =
| tributaries_right =
}}
The Obva (Russian: Обва) – is a river in Perm Krai, Russia, a right tributary of the Kama.[http://bse.sci-lib.com/article083012.html Obva in Great Soviet Encyclopedia] It starts in the Upper Kama Upland, in the west part of Sivinsky District, near the border of Kirov oblast. It flows into Kama Reservoir, {{convert|780|km|mi}} from the confluence of the Kama and the Volga. It is {{convert|247|km|mi}} long, and its drainage basin covers {{convert|6720|km2|mi2}}.[http://textual.ru/gvr/index.php?card=181199 «Река ОБВА»], Russian State Water Registry The Obva is frozen from late October to late April or early May.