Eleven species and one subspecies are reported as new or noteworthy to the flora of Kentucky. Carex cherokeensis Schweintz, Carex reniformis (L. Bailey) Small, and Carex seorsa Howe are reported for the first time. Significant increases in distribution are reported for Carex abscondita Mackenzie and Carex socialis Mohlenbrock & Schwegman. Additional records and/or updates of historical records include Carex aestivalis M. A. Curtis, Carex alata Torrey, Carex appalachica Webber & Ball, and Carex leptonervia (Fernald) Fernald. Previously reported but without cited vouchers, the occurrence of Carex atlantica L. Bailey subsp. capillacea (L.Bailey) Reznicek, Carex crebriflora Wiegand, and Carex longii Mackenzie are now verified.