Surname บันได (Lader 
, Ladner 
, Laddapron 
) , around the globe, is a common last name. The family name บันได is characteristic of Austria, where it is quite a common surname, Switzerland, where it is quite a rare surname, and the United States. Measured by absolute frequency, it most frequently occurs in the United States, Austria, and Germany. Very seldom, บันได is the forename as well as the last name.