Cayleigh sits next to 5 phonetic neighbors — Kaylee, Kayleigh, and Bailey are the closest matches by sound. Most share Cayleigh's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"from céilí, traditional Irish dance gathering"
"dark, black"
"son of the right hand (via Benjamin)"
"suffering, enduring"
"victory peace"
"bright, shining one"
"night, dark beauty"
"proud descendant, descendant of the proud one"
"dweller near the ash grove"
"one who inherits, female heir"
"creative blend, possibly from Jerome or Germany"
"fair, blessed, holy"
"God is gracious"
"angel, divine messenger"
"praised, one who is praised"
"garden of God, God's vineyard"
"tree"
"lake, body of still water"
"a voyage, a day's travel, life's path"
"little thing (endearing diminutive)"
Similar sound: These names share phonetic patterns with Cayleigh — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Irish Gaelic origins, giving them the same cultural heritage as Cayleigh.
Rhythm: Cayleigh is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.