Dmitry Alekseevich Zaikin (Russian: Дмитрий Алексеевич Заикин; 29 April 1932 – 20 October 2013) was a Soviet cosmonaut trainer.

He graduated from Military Fighter Pilot School, Armavir (Krasnodar Krai) and Frunze (now Bishkek), in 1955.

[2] He left the space service on 25 October 1969 for medical reasons while training for Soyuz missions.

[3] He then became an instructor and lead engineer at the Yuri Gagarin Cosmonauts Training Center.

Zaikin died of natural causes on 20 October 2013, as reported by Star City, the Yuri Gagarin Training Centre.