Vostok 6 (Russian: Восток-6, Orient 6 or East 6) was the first human spaceflight to carry a woman, cosmonaut Valentina Tereshkova, into space.

The Soviet state television network broadcast live video of Tereshkova from a camera inside the capsule, and she conversed with Premier Nikita Khrushchev over the radio.

Communications with ground controllers about her overall health were described in post-flight reports as "evasive", and later official accounts of the mission had somewhat condescending remarks about Tereshkova's overall in-flight performance.

[7] In Tereshkova's account of the mission in her postflight debriefing, she mentioned having assorted body pains and difficulty with her helmet headset (also reported by Bykovsky on Vostok 5).

[9] An official history of the Soviet space program published in 1973 described Tereshkova's physical condition and in-flight performance as udovletvoritel'noe (удовлетворительное, 'fair' or 'adequate') rather than otlichno (отлично, 'good' or 'outstanding').