Bertlyn Bosley (1908-1988) was a researcher, author, and administrator in the field of nutrition. She was active in the United States Public Health Service, especially with respect to Native Americans.

Dr. Bosley was born on March 11, 1908 in Mannington, West Virginia. She received her B.A. from Western College in 1929, and her B.S. from Simmons College in 1931. Later she earned her M.S. from the Teachers College at Columbia University in 1936. She received her PhD in 1944 from Columbia University.

After finishing her studies Dr. Bosley began a career spent mostly working for government agencies. She was the Principal Nutritionist for the North Carolina State Board of Health (NCSBH) from 1944-1947. She planned, organized and developed the first public health nutrition program at the North Carolina State Board of Health. Then she was a Professor of Nutrition and Director of Nutrition Research at the Women's College of the University of North Carolina, Greensboro from 1947-1958. Dr. Bosley then became the Chief of the Nutrition Section of the NCSBH from 1948-1956. After working for the state government of North Carolina, Dr. Bosley went to work for the federal government. She was the Chief of the Nutrition and Dietetics Branch of the Division of Indian Health, which was part of the U.S. Public Health Service from 1956-1964. Then she worked as a Regional Nutrition Advisor for the Pan American Health Organization (a regional office of the World Health Organization) from 1964-1973. She died in Marietta, Ohio on January 22, 1989.