Hofmann Island is 13 kilometres (8 miles) long and its maximum width is 5 km (3 miles). It is located 8.6 km (5.3 mi) further east from Rainer Island and it has three small islets on its northeastern shores.
Hofmann island is the site of a snow runway.
This island has been named after Russian mineralogist and explorer of the Urals Professor E.K. Hofmann (1801-1871).
Northeast of Hofmann Island runs a 45-kilometre-broad (28 mi) channel known as Proliv Severo Vostochnyy, beyond which lies Belaya Zemlya.