I-Decolonization (isiNgesi saseMelika) okanye i-decolonisation (isiNgesi saseBrithani) kukuchithwa kwekoloniyalizimu, le nkqubo yokugqibela yinkqubo apho isizwe sakha kwaye sigcine ukulawula okanye ezinye iindawo. Le ngcamango isebenza ngokugqithiseleyo ekugqibeleni, ngexesha lesibini kwinkulungwane ye-20 yeminyaka, yolawulo lwamakoloniyali olusekwe ngaphambi kweMfazwe Yehlabathi Yokuqala kwihlabathi lonke.