Chantasia is of African origin, derived from the Swahili word 'Kantasi', which means 'sweet'. It is a unisex name but is more commonly used for females. Spelling variations include Chantaysia and Chontsia. The name gained popularity in the United States during the late 20th century.
The name Chantasia saw a brief spike in popularity between 1993 and 2001, with five babies named Chantasia born each year from 1998 to 1999, and six in 2001. However, this trend was not sustained as the total number of births for this name over these nine years only reached 21.