A verst (Russian:верста, versta) is an obsolete Russian unit of length. It is defined as being 500 sazhen long, which makes a verst equal to 1.0668 kilometres (0.6629 miles; 3,500 feet).

In the English language, verst is singular with the normal plural versts. In Russian, the nominative singular is versta, but the form usually used with numbers is genitive plural verst — 10 verst, 25 verst, etc. — whence the English form.