Jayni is of American origin, derived from the French name Jeanne, which means "God is gracious." It gained popularity in the United States during the late 20th century but remains relatively uncommon today. The name Jayni is often associated with a modern, independent spirit due to its unique sound and spelling. It can be spelled in various ways, including Jaihni, Jahni, and other variations, offering flexibility for parents seeking a distinctive name for their child.
The name Jayni experienced periods of popularity with the most births occurring between 1988 and 2004, followed by a decline starting from 2005.