Who was the first woman astronaut in the world?

Valentina Tereshkova (USSR) was the first woman astronaut in the world. She traveled in Vostok VI on June 16, 1963. Valentina Vladimirovna Tereshkova (born March 6, 1937) was the first woman in space, now a retired Soviet cosmonaut. Out of more than four hundred applicants and then out of five finalists.