Cassiar

Cassiar may refer to:


 * Cassiar, British Columbia, a ghost town in northern British Columbia
 * Stewart-Cassiar Highway, the northwesternmost highway in British Columbia
 * Cassiar Mountains, in northern British Columbia and southern Yukon
 * Cassiar Land District, a cadastral survey division of British Columbia
 * Cassiar River, a tributary of the Turnagain River
 * Cassiar Tunnel (sometimes called the Cassiar Connector), a highway traffic tunnel on the Trans-Canada Highway in Vancouver, British Columbia
 * Cassiar (electoral district), a former provincial electoral district in northern British Columbia
 * Cassiar Gold Rush (1873), a gold rush in British Columbia
 * Cassiar Country, a historical region in British Columbia