Lennie is a distinctive girls' name in England & Wales, ranking #1302 in 2024 with 25 recorded births. The name reached its all-time peak in 2025 with 27 births ranking #1197. In 2024, approximately 1 in every 10,320 girls born was named Lennie. RISING Recent data shows the name is currently rising.
Lennie is a warm vintage short form usually linked with Leonard, so it carries the same broader meaning family tied to lion-like bravery. It feels cheerful and affectionate in modern use.
The name has long existed as a nickname and sometimes stands alone as a first name. Its appeal now is very much part of the revival of soft, informal old-fashioned names.