Sven is the name of Kristoff’s reindeer in Disney’s Frozen.
Sven is Kristoff’s loyal animal companion and travels with him through the mountains around Arendelle. Although Sven does not speak human language, Kristoff often interprets his expressions and sounds as if he were having a conversation.
The character provides comic relief while also serving a practical role: Sven helps Kristoff transport ice and later assists Anna, Elsa, and Olaf during their journey. His bond with Kristoff is presented as a long-standing friendship rather than merely a working relationship.
Sven returns in Frozen II, where he remains part of the group’s adventures. The character’s design reflects a real reindeer, including antlers and a broad, sturdy body adapted to cold environments. Reindeer are also known as caribou in North America.