Catherine/Katherine is a name with a great deal of history. Naturally, it has spawned a large number of international variants and nicknames. Note that this is not a full list. You can find one here.
Catherine Equivalents (full name variants)
Aikaterine (Ancient Greek)
Katarina (German, Swedish, Norwegian, Danish, Hungarian, Croatian, Serbian, Slovene)
Katelijn/Katelijne (Dutch) (kah-ta-LIYN/kah-ta-LIYN-a)
Caitlin/Caitlín (Irish) (kaht-LEEN)
Katrin (German, Swedish, Estonian)
Kate (English, and surprisingly, Croatian)
Katja (German, Swedish, Norwegian, Danish, Dutch, Slovene)
Kaja (Norwegian, Danish, Swedish, Estonian, Slovene)
What is your favorite variant of Katherine?