An English variant of Ashley from place-name elements meaning 'ash tree meadow.'
Ashleigh is one of several orthographic variations of Ashley, a name whose roots reach deep into Old English soil. It derives from the compound "æsc" (ash tree) and "lēah" (woodland clearing or meadow), originally a place name and then a surname across England. The ash tree itself held profound significance in ancient Germanic and Norse cosmology — Yggdrasil, the world tree of Norse myth, was an ash — lending the name an inadvertent mythological resonance that its earliest bearers could not have imagined.
For most of English history, Ashley functioned primarily as a masculine surname, carried by noble families including the Earls of Shaftesbury. Its transformation into a feminine given name accelerated dramatically in the 1980s, partly through the popularity of the character Ashley Wilkes in "Gone With the Wind" and its 1939 film adaptation — ironically a male character — and through cultural momentum that is difficult to trace to a single source. The Ashleigh spelling, popular particularly in the United Kingdom and Australia, adds a visual feminizing softness while preserving the name's sounds.
By the 1990s, Ashley and its variants (Ashleigh, Ashlee, Ashlie) had become among the most common girls' names in the English-speaking world. Today, Ashleigh occupies a nostalgic register — evoking a particular era of naming culture — while the spelling variant keeps it slightly fresher than the standard form. For parents who grew up with the name as background music of their generation, choosing Ashleigh for a daughter is often an act of quiet sentimental continuity.