MV Brown Bear was an American research vessel in commission in the fleet of the United States Department of Agriculture′s Bureau of Biological Survey and from 1934 to 1940 and in the fleet of the United States Department of the Interior′s Fish and Wildlife Service from 1940 to 1942 and from 1946 to 1951, under the control of the University of Washington from 1952 to 1965, and in commission in the fleet of the United States Fish and Wildlife Service from 1965 to 1970 and of the National Oceanic and Atmospheric Administration′s National Marine Fisheries Service (NMFS) from 1970 to 1972.