Cognomen Вахт (Vakht 
, Вахт 
, Vaht 
) , in the world, is a rare last name. The family name Вахт is habitual in Estonia, where it is quite a common surname, Finland, where it is a rare surname, and Ukraine, where it is a very rare surname. In absolute terms, it is commonest in Estonia, India, and Finland. Very seldom, Вахт is the forename as well as the last name.