Dean sits next to 3 phonetic neighbors — Dane, Deen, and Dion are the closest matches by sound. Most share Dean's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"church official overseeing ten"
"may God protect"
"speckled, freckled"
"precious and brave"
"rejoice, keeper of the keys"
"western farmstead, western settlement"
"strong as a lion"
"priest"
"great warrior, one who cuts down"
"wood, forest; man of the forest"
"woodcutter, carpenter"
"associated with, united"
"from the Artorius family"
"descendant of the little king"
"little seal"
"park keeper"
"God is gracious"
"tall, imposing one"
"defender of men"
"Gaelic-speaking person; Celtic person"
"gift of Yahweh"
Similar sound: These names share phonetic patterns with Dean — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin decanus origins, giving them the same cultural heritage as Dean.
Rhythm: Dean is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.