武克希河（俄语：Вуокса，芬兰语：Vuoksi，瑞典语：Vuoksen）是卡累利阿地峡最北面的一条河流，源头为芬兰东南部的塞马湖，流入俄罗斯西北部的拉多加湖。武克希河共有3个分支汇入拉多加湖，老的主北分支位于普里奥焦尔斯克，另一个较小的分支在其北面几公里处。从1857年开始，一个新的南分支位于55公里处，被称为Burnaya河。老的分支1857年后开始断流，北面和南面的分支实际上属于两个不同的河流系统，有时在旱季互相隔离。

塞马湖与拉多加湖的落差为69米。武克希河北分支长度为150公里，南分支长度为162公里。从整个流域而言，河道宽处形成一系列湖泊，由短的河流将这些湖泊相连。

The Vuoksi (Russian:Вуокса; Finnish:Vuoksi; Swedish:Vuoksen) is a river running through the northernmost part of the Karelian Isthmus from Lake Saimaa in southeastern Finland to Lake Ladoga in northwestern Russia. The river enters Lake Ladoga in three branches, an older main northern branch at Priozersk (Käkisalmi), a smaller branch a few kilometres to the north of it, and a new southern branch entering 50 kilometres (31 mi) further southeast as Burnaya River (Finnish: Taipaleenjoki), which has become the main stream in terms of water discharge. Since 1857, the old northern distributaries drain only the lower reaches of the Vuoksi basin and are not fed by Lake Saimaa. The northern and southern branches actually belong to two separate river systems, which at times get isolated from each other in dry seasons.