马歇尔湖（Marsh Lake，Mud Lake）是育空河上的一个湖泊，位于育空首府白马市东南。马歇尔湖长约30公里，最宽处约4公里。 经纬度为60°26′10″N 134°15′02″W 。湖面海拔2,147英尺(654 m)。马歇尔湖社区位于湖的北岸。

Marsh Lake (Mud Lake) is a widening of the Yukon River southeast of Whitehorse, Yukon, Canada. It is over 30 kilometres long and ranges from three to four kilometres wide. The co-ordinates of the lake are 60°26′10″N 134°15′02″W / 60.43611°N 134.25056°W / 60.43611; -134.25056, and is 2,147 feet above sea level. The lake forms part of a chain of finger lakes, sometimes referred to as "The Southern Lakes", they form the headwaters of the Yukon River.