Kale, sometimes spelt as Kayle or abbreviated from Kalen, is a Gaelic unisex given name, although it is more commonly given to males.
Americanized form of German Köhl (see Kohl) or Kehl and possibly also of Kahl (compare Cale).
In English it is a habitational name from the villages of East and West Keal in Lincolnshire which are named from Old Norse kjǫlr ‘ridge’.
In India (Maharashtra) it is a descriptive nickname from Hindi kale ‘black’ (Sanskrit kāla) found among Marathas or/and Kunbis, Brahmnins and other communities.
The Konkanastha Brahmins have a clan called Kale.