Millenium is a girl name. It last appeared in U.S. Social Security records in 2000. Millenium first appears in the data in 2000 and reached its peak in 2000 (7 births). The chart below shows how the name has risen and fallen over time.
How popular is Millenium? (U.S. births per year)
U.S. births per year, 2000–2000 · hover or tap for the count and national rank · source: U.S. Social Security Administration