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"
"from the steep place"
"new house, new home"
"the brave ones, the warriors"
"town near the cliff"
"son of Jack"
"metalworker, blacksmith"
"may God protect"
"swift projectile, arrow"
"spirit, divine inner power"
"lime tree hill"
"invented modern American name"
"gift"
"free man, warrior"
"famous through noble birth"
"peaceful ruler"
"helpful person"
"servant of God"
"aster flower, purple"
"wooded land"
"young wolf"
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.