The PPG tankette (Russian: ППГ; Подвижное пулемётное гнездо, romanized: PPG; Podvizhnoye pulemyotnoye gnezdo; literally "mobile machine-gun nest"), also known by the prototype name Object 217, was a Soviet tankette produced for fighting in the Winter War.

About a hundred were produced at the Kirov Factory in Leningrad in 1940 and rushed to the front, but did not make it to Finland in time to be used in combat.

The PPG tankette had partial armoured cover of 5 to 8 mm (0.20 to 0.31 in) thickness protecting the front and sides, for two infantrymen riding in a prone position.

Although the low silhouette in principle contributed to the survival of the machine, its speed and mobility did not allow for a rapid retreat in case of threat as the tankette could only reach up to 18 km/h.

A preliminary order for a batch of five experimental tankettes was canceled, the PPG was not accepted and was not used in combat operations.