Kelly sits next to 4 phonetic neighbors — Kelley, Kell, and Kellan are the closest matches by sound. Most share Kelly's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"bright-headed warrior"
"modern invented name, valley dweller (from -den suffix)"
"heart, spirit"
"cliff settlement"
"my rock is God"
"shelter, protection"
"modern blend: bright house, highest point"
"bold, riot"
"free man, warrior"
"supplanter, one who replaces another"
"shelter, sanctuary"
"father of peace"
"from the place of wide waters"
"growth, abundance, increase"
"son of Gilbert, son of Gib"
"spear, marksman"
"quiet, calm, reserved"
"to heal (if derived from Jason)"
"who is like God (via Michael)"
"from the Roman gens Terentia"
"eagle"
Similar sound: These names share phonetic patterns with Kelly — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Irish origins, giving them the same cultural heritage as Kelly.
Rhythm: Kelly is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.