The Hughes Range is a high massive north–south trending mountain range in Antarctica, surmounted by six prominent summits, of which Mount Kaplan at 4,230 metres (13,880 ft) is the highest. The range is located east of Canyon Glacier in the Queen Maud Mountains and extends 45 nautical miles from the confluence of Brandau Glacier and Keltie Glacier in the south, to the Giovinco Ice Piedmont in the north.