Mackenzie sits next to 3 phonetic neighbors — McKenzie, Kennedy, and Makenzie are the closest matches by sound. Most share Mackenzie's Scottish cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of Kenneth / son of Coinneach"
"from Scotland, Scotsman"
"from the high woodland clearing"
"YHWH is gracious"
"fair, white, blessed"
"perfect knowledge, complete wisdom"
"saint of God, blessed by God"
"slender, narrow"
"elder, respected one"
"from Sweden, soft napped leather"
"buck's meadow, deer clearing"
"Moorish, dark-complexioned"
"dear, beloved"
"steep valley settlement"
"settlement by the ash trees"
"little dark one"
"destined, determined"
"battle, fighter"
"swift projectile, arrow"
"highest point, peak"
Similar sound: These names share phonetic patterns with Mackenzie — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Scottish Gaelic origins, giving them the same cultural heritage as Mackenzie.
Rhythm: Mackenzie is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.