Clarke sits next to 3 phonetic neighbors — Clark, Claire, and Clarkson are the closest matches by sound. Most share Clarke's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"scribe, secretary, scholar"
"journey, day's travel"
"feminine form of John"
"new star, stellar explosion"
"descendant of Raghallach"
"lapis lazuli beauty"
"gods will, divine wonder"
"rock hill, mound"
"lake, pool"
"song, tune, musical chant"
"ewe, gentle one"
"full of happiness"
"famous warrior"
"song, poem"
"friend, companion"
"door, pathway"
"wealthy, gift"
"of the Aryan/Indo-Iranian people"
"protector, guardian"
"good oak"
"free-spirited, blissful"
Similar sound: These names share phonetic patterns with Clarke — 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 Clarke.
Rhythm: Clarke is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.