Frankline is of African origin, derived from the Kikuyu tribe's custom of giving children names that reflect the day of the week on which they were born. Specifically, it is the Kikuyu equivalent of the name Friday, meaning "born on a Friday." This name has gained international recognition due to its association with notable figures like Franklin D. Roosevelt and Franklin Graham, although it remains more commonly used in African countries such as Kenya and Nigeria.
Frankline was quite popular in 1933 with exactly five babies born that year.