The Hotel class is the general NATO classification for a type of nuclear-powered ballistic missile submarine that was launched by the Soviet Union around 1959.

The development of the submarine, designed to carry the D-2 launch system and R-13 missiles, was approved on 26 August 1956.

Additionally, the Hotels had small horizontal hydroplanes for better maneuverability and more reliable electro-hydraulic command control surfaces for high-speed underwater operations with reduced noise.

The D-2 launch system on the Hotels placed three R-13 missiles in vertical containers directly behind the sail.

[citation needed] The first Hotel-class submarine, K-19, was laid down on 17 October 1958 and commissioned on 12 November 1960, only to suffer numerous setbacks and accidents.

From 1969 to 1970, K-145 was modified by Project 701 to test the R-29 missiles, receiving the NATO reporting name Hotel III.