Williow is a very rare variant of Willow that peaked in 2018 and has grown less common since.
Williow is a girl name. In 2025 it ranked #17,133 for girl births in the United States (and #28,355 across all names), given to 5 babies. Williow was first reported in SSA data in 2017 and peaked in 2018 (8 births).
Girls named Williow per year · hover for count and girls rank · Source: U.S. Social Security Administration, national data 2017–2025 · U.S.+territories from SSA territory files (1998–2025) · SSA publishes a name only in years it was given to at least 5 babies, so a name may have been in use before — or between — the years shown here