Willow tree; slender; graceful
Willo is a modern, simplified spelling of the English name Willow. It refers to the willow tree, which is celebrated for its flexibility, grace, and resilience. While the 'w' ending is traditional, this version offers a sleeker, more phonetic look that aligns with the 'o' ending trend in modern naming.
About 9 girls were named Willo in 2025.
Irish professional footballer
Title character of the animated series · Willo the Wisp
US births per 5-year period, 1990–present (SSA data).