{{lead too short|date=December 2023}} {{Infobox river | name = Toyma, Tuyma | image = | image_caption = | source1_location = Udmurtia | source1_coordinates = {{coord|56|19|12|N|52|24|24|E|source:kolossus-frwiki|display=inline}} | mouth = Kama | mouth_location = near Yelabuga, Tatarstan | mouth_coordinates = {{coord|55.7423|52.0315|region:RU|display=it}} | subdivision_type1 = Country | subdivision_name1 = Tatarstan and Udmurtia, Russia | length_km = 121 | mouth_elevation = {{convert|53|m|ft|abbr=on}} | discharge1_avg = | basin_size_km2 = 1450 | progression = {{RKama}} }}
The '''Toyma''' ({{langx|ru|Тойма}}; {{langx|tt-Cyrl|Туйма}}) is a river in Udmurtia and Tatarstan, Russian Federation, a right-bank tributary of the Kama. It is {{convert|121|km|mi}} long, of which {{convert|84|km|mi}} are in Tatarstan, and its drainage basin covers {{convert|1450|km2|mi2}}.<ref name=gvr>[http://textual.ru/gvr/index.php?card=182093 «Река ТОЙМА»], Russian State Water Registry</ref> It begins in Udmurtia and falls to the Kama near Yelabuga, Tatarstan.
Major tributaries are the Vozzhayka, Yurashka, Karinka rivers. The maximal mineralization 400–600 mg/L. The maximal water discharge was {{convert|533|m3/s|cuft/s}} in 1979. Drainage is regulated. Average sediment accumulation at the mouth per year is {{convert|146|mm|in}}. Since 1978 it is protected as a ''natural monument of Tatarstan''.<ref>{{TES|Туйма}}</ref> Mendeleyevsk and Yelabuga are along the river.
== References == {{reflist}}
{{Kama River}}
{{commonscat|Toyma River}}
Category:Rivers of Tatarstan Category:Rivers of Udmurtia
{{Russia-river-stub}}