Last name Sisian (Сисян 
, Sisian 
) , worldwide, is a very rare family name. The last name Sisian is characteristic of Honduras, where it is a very rare surname, Russia, where it is an extremely rare surname, and the United States. In absolute terms, it is commonest in the United States, Russia, and Mexico. More prevalently, Sisian is the forename as well as the last name.