Mccoy sits next to 4 phonetic neighbors — McCoy, McKoy, and Troy are the closest matches by sound. Most share Mccoy's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of Aodh (fire)"
"courteous, well-bred"
"fisherman"
"son of Judd"
"earthly, of the earth"
"heart brave"
"Gomeric's mountain, power mountain"
"young warrior, free man"
"son of the marsh dwellers"
"son of Cole"
"great fort, spacious hill"
"father of height"
"from the crooked stream"
"brook, running water"
"the bear"
"gift of God, gift of Yahweh"
"fire (from the sun god Aodh)"
"poet, bard"
"of manly valor, from Andre"
"aspen tree, quaking poplar"
"muddy place, ditch"
Similar sound: These names share phonetic patterns with Mccoy — 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 Mccoy.
Rhythm: Mccoy is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.