Blackie is an unusual yet distinctive given name of American origin. It entered popularity during the late 19th to mid-20th centuries, often used as a pet form for males named after animals such as blackbirds or blacks (a term once used for dark-skinned people). The name has also been used as a nickname for individuals with dark hair or complexion.
"Blackie was quite popular in its first year of use, with five babies being named thus in 1923."