Likely a modern invented name, possibly inspired by sound patterns like Cole or coal-related word roots.
Koal is a contemporary spelling variant of Cole, a name with ancient English roots. Cole derives from the Old English col, meaning "charcoal" or simply "coal," likely originating as a nickname for someone with very dark hair or a swarthy complexion. As a surname it became widespread across the British Isles, carried by families whose ancestors might have worked as charcoal burners or simply had the dark coloring the word described.
The surname then made the common journey into use as a given name, particularly in North America. Cole has had notable cultural bearers across a wide range. Cole Porter, the Missouri-born composer and lyricist, gave the name a mid-century gloss of sophistication and wit—his verbal dexterity and harmonic complexity made him one of the defining voices of the American songbook.
Nat King Cole brought the name into a different register entirely, his velvet baritone and crossover success in the 1940s and 1950s making him one of the first African American artists to achieve mainstream television prominence. These two Coles gave the name a dual cultural resonance: jazz-club elegance and Tin Pan Alley wit. The Koal spelling introduces a visual freshness, the K lending a crispness that the soft C obscures. It signals individuality without departing from the name's familiar sound, a quiet act of personalization that is characteristic of contemporary American naming sensibility.