Bolshoy Kub

{{Short description|River in Perm Krai, Russia}}

{{One source|date=March 2025}}

{{Infobox river

| name = Bolshoy Kub

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| mouth = Veslyana

| progression = {{RVeslyana}}

| length_km = 37

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| mouth_coordinates = {{coord|60.5146|52.7051|display=it}}

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The Bolshoy Kub ({{langx|ru|Большой Куб}}) is a river in Perm Krai, Russia, a left tributary of the Veslyana, which in turn is a tributary of the Kama. The river is {{convert|37|km|mi}} long. The Bolshoy Kub flows into the Veslyana {{convert|121|km|mi}} from the larger river's mouth.{{cite web|url=http://textual.ru/gvr/index.php?card=179814|title=Государственный водный реестр РФ: Большой Куб}}