Scandinavian form of Karin/Karen, ultimately from Greek 'Aikaterine' meaning 'pure.'
Carin is the Scandinavian form of Karen, which itself derives from Katherine — ultimately tracing back to the Greek Aikaterine, a name whose etymology has been debated for centuries. The most widely accepted derivation links it to the Greek "katharos," meaning pure, though some scholars connect it to the goddess Hecate. Saint Catherine of Alexandria, a fourth-century martyr of legendary learning and courage, secured the name's place in the Christian calendar and spread it from Greece across Europe.
In Sweden and Norway, Carin (sometimes spelled Karin) has been among the most enduring feminine names for several centuries. The Swedish painter Karin Larsson, wife of the celebrated artist Carl Larsson, was herself a gifted textile designer whose influence on Swedish folk art and domestic aesthetics was considerable; her name in its Carin/Karin form became associated with a certain understated Swedish elegance. The name appears throughout Scandinavian literature and is borne by numerous notable women in Nordic public life.
In English-speaking countries Carin functions as an uncommon, quietly refined variant that signals Scandinavian heritage or a preference for the less-traveled path. Its phonetics are identical to Karen but the spelling sets it apart in a meaningful way — not a correction of Karen but an original form, older in its own tradition. As Karen acquired ironic cultural baggage in internet humor during the 2010s, Carin became an inadvertently useful alternative: the same lovely sounds, entirely separate associations.