To the north, the fjord opens into the Lincoln Sea of the Arctic Ocean.

The fjord was named by Robert Peary in honor of New York banker and yachtsman E. C. Benedict, one of the prominent members of the Peary Arctic Club.

It opens to the north about 30 km (19 mi) to the west of Sands Fjord.

[2] The fjord stretches in a roughly southeast–northwest direction for about 20 km (12 mi).

[3] There are two branches at its head; A. Harmsworth Glacier discharges from the Roosevelt Range on the eastern side of the head of Benedict Fjord, and a smaller branch extends southwards from the western flank of the fjord.