Around the world, Kalwin (Kalwin 
, كالفن 
, คาลวิน ) is a very rare predominantly male, but very seldom female given name. The forename Kalwin is characteristic of India, where it is an extremely rare predominantly male, but scarcely feminine name, and Brazil, where it is an extremely rare boy's name. Very seldom, Kalwin is the last name as well as the forename.
Kalwin is also a name for the fictitious and mythical characters: Calvin Swanwick , the fictional character from the DC Extended Universe, Man of Steel; Calvin Burnside , the animated television character, Calvin and the Colonel; Calvin , the character in the Calvin and Hobbes comics; Sketchy , the fictional character in Dark Angel and Cave Carson , the fictional character, among other works.