The Lillooet Land District is one of the 59 cadastral subdivisions of British Columbia, which were created by the Lands Act of the Colony of British Columbia in 1859, defined as "a territorial division with legally defined boundaries for administrative purposes". The land district's boundaries came to be used as the boundary of the initial Lillooet riding for the provincial Legislature from 1871, when the colony became a province. In addition to use in descriptions of land titles and lot surveys, the Land District was also the basis of the Lillooet Mining District.