The Czilim-class ACV (Project 20910) is a small patrol hovercraft operated by the Border Service of the FSB of Russia.

It is based on an Almaz CMDB design and was ordered from Yaroslavl Shipyard in the late 1990s.

The first craft was laid down on 24 February 1998 and entered service on 18 September 2000.

Three further craft were ordered at Yaroslavl in the late 1990s and early 2000s, though none are currently believed to be completed.

[1] The Czilim class is capable of carrying six border guards and their equipment.