At its height in 1969, Kellie reached #130 nationally — 2,641 babies received it that single year. Its strongest stretch was the 1960s — particularly the decade right around the peak. Today, Kellie is a less common but recognizable name in U.S. records (ranked #4,914) with about 30 babies named Kellie each year. Kellie's usage has fallen in recent decades. In all, around 51,088 babies have been registered as Kellie since 1880.