Karg is a surname. Notable people with the surname include:

Christiane Karg (born 1980), German operatic soprano Diego Karg (born 1990), Dutch footballer Gabriel Karg (c. 1570–between 1630 and 1640), Swabian artist Morné Karg (born 1977), Namibian cricketer Sigfrid Karg-Elert (1877–1933), German composer