Craigellachie (IPA: , but /k/ or /h/ can be substituted for /x/; /ˌkɹeɪgəˈlæki/ is another common pronunciation) is a locality in British Columbia, Canada, located several kilometres to the west of the Eagle Pass summit. Craigellachie is the site of a tourist stop on the Trans-Canada Highway between Salmon Arm and Revelstoke.

It was named after the village of Craigellachie on the River Spey in Scotland, the ancestral home of Sir George Stephen, the first president of the Canadian Pacific Railway (CPR). Craigellachie is most famous for being the site of the "Last Spike" of the CPR, driven by Sir Donald Smith, a director of the CPR, on November 7, 1885. Actually, Smith drove in two last spikes. He bent the first one and had to drive in a replacement.

The American equivalent of Craigellachie is Promontory, Utah.