Whittaker sits next to 3 phonetic neighbors — Whitaker, Walker, and Thatcher are the closest matches by sound. Most share Whittaker's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"dweller at the white cultivated land"
"supplanter"
"lover of churches, bright-headed"
"permanent, perennial"
"mountain of strength, exalted"
"narrow channel (from Kyle)"
"from the island of Cyprus"
"divine mother goddess (Irish)"
"God is gracious (from Shawn element)"
"strengthened by God"
"of Mars, dedicated to the war god"
"God persists, God will prevail"
"firm belief in reliability"
"worker in hard materials"
"lake colony, settlement by the pool"
"spring-like, of the spring"
"from the Frankish haigro (heron)"
"mythical bird of rebirth"
"modern invention, noble and bold"
"desired, precious one"
"spear ruler, powerful warrior"
Similar sound: These names share phonetic patterns with Whittaker — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English origins, giving them the same cultural heritage as Whittaker.
Rhythm: Whittaker is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.