Stina Mårtensson (3 June 1882 – 1962) was a Swedish missionary.
She served with the Swedish Missionary Society in Chinese Turkestan (present day Xinjiang) and India.
Mårtensson was born in Ovanåker in Hälsingland, Sweden.
She worked as a nurse midwife in Yarkand and Kashgar for more than 22 years in various periods during the years 1907–1936.