邓斯缪尔（英语：Dunsmuir）是美国加利福尼亚州锡斯基尤县（Siskiyou County）的一个市级行政区。2000年对此城镇进行人口普查所得的人口数为1,923人。在早期蒸汽机盛行的年代，此城镇以重要的美国中太平洋地区（以及后来的南太平洋地区）铁路调车场闻名。额外的蒸汽机动车（steam locomotives）在此地附挂上列车，以能在此地北方一带爬坡。美国国铁（Amtrak）也在此地停靠。

Dunsmuir is a city in Siskiyou County, northern California. It is on the upper Sacramento River in the Trinity Mountains.

The official city slogan is "Home of the best water on Earth". Dunsmuir is currently a hub for tourism in Northern California, with Interstate 5 in California passing through it. Visitors enjoy fishing, skiing, climbing, or sight-seeing. During the steam locomotive railroad era, it was notable for being the site of an important Central Pacific (and later Southern Pacific) railroad yard, where extra steam locomotives were added to assist trains on the grade to the north.