Madden sits next to 5 phonetic neighbors — Aidan, Caden, and Hayden are the closest matches by sound. Most share Madden's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"descendant of Madan (little dog)"
"Lord (via Kyrie element)"
"dragon"
"poet"
"the fifth-born child"
"son of David"
"source of joy"
"wayfarer, traveler"
"great chief, eminent lord"
"drawn out of water"
"wise protector"
"healer (from Greek Jason)"
"exalted father"
"sea warrior"
"king"
"one who brings news"
"powerful leader of the folk"
"wolf lover"
"dweller by the ridge"
"dark man's settlement, coal-black farm"
"church official, rule of law"
Similar sound: These names share phonetic patterns with Madden — 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 Madden.
Rhythm: Madden is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.