Washington D.c (shindumuna: /ˈwɑʃɪŋtən/)2, mumanyika bu tshimenga tshia Columbia (mu ngeleshi: District of Columbia), babikila nanga nanga Washington, D.C., buase D.C. (/ˈdiː ˌsiː/; bua ku benga dibuejakaja ni bulamatadi wa Washington)3,Tshidi tshimenga tshikulu tshia mu États Unis.