Kelli is a name of American origin, derived from the Irish name Caitlín, which means "pure, virtuous". It gained popularity in the United States during the mid-20th century and has since been widely used as both a given name for girls and occasionally as a surname. The name Kelli is often associated with a friendly, energetic, and approachable personality, although it does not have any specific historical or cultural significance attached to it beyond its meaning.
"Kelli was a popular name choice for girls born between the years 1963 and 1998, with over 300 instances of babies named Kelli during this period. The name's popularity peaked in 1981 with 21 births, while there were notably fewer births named Kelli in the years 1978 and 1998, with only 5 each."