The Aleksandrov-Kalinin AK-1 was a prototype airliner built in the Soviet Union in the early 1920s, designed as part of a project by TsAGI to investigate low-cost construction techniques and to verify calculation models for thick-section airfoils.

It was a high-wing, strut-braced monoplane of conventional design, powered by a single engine in the nose.

The aircraft was assembled at the GAZ-5 factory during 1923 and flight testing began in February the following year.

Following flight tests, it was handed over to Dobrolyot, who used it on a route between Moscow and Kazan.

In 1925, it was used in a propaganda flight from Moscow to Beijing and other Chinese cities, flying 7,000 km (4,300 mi) in 38 days.