Lenner is a girl name. It last appeared in U.S. Social Security records in 1921. Lenner first appears in the data in 1911 and reached its peak in 1921 (6 births). The chart below shows how the name has risen and fallen over time.
How popular is Lenner? (U.S. births per year)
U.S. births per year, 1911–1921 · hover or tap for the count and national rank · source: U.S. Social Security Administration