Cassidy sits next to 5 phonetic neighbors — Cassandra, Cadence, and Callie are the closest matches by sound. Most share Cassidy's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"curly-haired"
"bright, shining one"
"raven estate"
"beloved, wished-for child (from Hebrew Miriam via Mary)"
"grace, divine favor"
"fairy queen, princess"
"girl (divine feminine)"
"champion, cloud"
"battle glory"
"protector of men"
"protector of men"
"father rejoices"
"ship's victory"
"free person"
"modern blended name form"
"strength, power"
"olive tree, peace"
"divine messenger"
"from the Parisii Celtic tribe"
"from Laurentum, the laurel city"
"God is my judge"
Similar sound: These names share phonetic patterns with Cassidy — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Irish origins, giving them the same cultural heritage as Cassidy.
Rhythm: Cassidy is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.