Carmack is a surname derived from the Irish given name "Cormac". Notable people with the surname include: Adrian Carmack (born 1969), game artist, cofounder of id Software Chris Carmack (born 1980), American actor Edward W. Carmack (1858–1908), American politician George Carmack (1860–1922), American discoverer of gold in the Klondike region Howard Carmack, Internet spammer John Carmack (born 1970), American game programmer, co-founder of id Software Justin Carmack (1981-2000), American child actor Kate Carmack (1862–1920), First Nation woman Kona Carmack (born 1976), American model See also Carmack Amendment to the Interstate Commerce Act regarding the liability of carriers under receipts and bills of lading Carmacks, Yukon Carmacks Group Carmacks Airport Carmack's Reverse, computer graphics technique Little Salmon/Carmacks First Nation Cormack (surname) McCormack McCormick (surname)