Globally, Stanly (Stanly 
, スタンリー) is quite a common masculine first name. The forename Stanly is characteristic of Oman, where it is quite a rare boy's name, Nigeria, where it is quite a rare principally boy's, but very seldom girly name, and the Dominican Republic, where it is quite a rare male name. Not in comparison with a country's population, it is the most numerous in Nigeria, Indonesia, and India. Likewise, Stanly is the last name as well as the forename.
Stanly is also a prevalent name for the fictitious and mythical characters: Stan Marsh , the South Park character; Stanley Kowalski , the fictional character in Tennessee Williams' A Streetcar Named Desire; Stanley S. SquarePants , the character in SpongeBob SquarePants; Mad Stan , the character in Batman Beyond and Star City Slayer , the DC Comics character, Green Arrow, and in many other works.