Fyodor Andreyevich Matisen (or Mathiesen) (Russian: Фёдор Андреевич Матисен) (1 June (O.S.

20 May) 1872, Saint Petersburg – 19 December 1921, Irkutsk) was an officer of the Russian Imperial Navy, hydrographer, and explorer.

Matisen's friend Alexander Kolchak accompanied the expedition as third naval officer and hydrographer.

[2] Finally Baron von Toll sent Kolomeitsev away on a long sledge trip overland with the mission of organizing coal depots for the ship.

In March, while Zarya was still stuck in ice, Matisen explored the Nordenskiöld Archipelago on dogsled through the frozen sea as far as Russky Island.

The aim of Toll's expedition was to explore well the area north of the New Siberian Islands and eventually sail towards the Pole in order to find the elusive Sannikov Land.

On 6 August 1903, after forwarding all scientific equipment to Saint Petersburg, the ship was stripped and its hull was allowed to fill with water.

He served as a hydrographer in the British Royal Navy for a period of time, but opted to return to Russia and went to Vladivostok in 1919.

[6] A "Dmitriy Ovtsyn" class coastal survey ship was named Fyodor Matisen by the USSR government in 1976.