Family name Sahny (Sahny 
) , across the world, is a rare cognomen. The last name Sahny is characteristic of Bermuda, where it is quite a rare surname, Belgium, where it is a rare surname, and India, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in India, Belgium, and Germany. Very seldom, Sahny is the forename as well as the last name.