The Liger Zero (ライガーゼロ Raigā Zero) is a Lion-type Zoid, one of over 200 species of bio-mechanical life forms that form the Zoid race, providing the basis for TOMY’s Zoids franchise. It is the protagonist Zoid and Hero Zoid in both the Zoids: New Century and Zoids: Fuzors anime series.

The Zero also features in both the Chaotic Century and New Century manga series and played a role in the Battle Story. As a model, it was the centre of Hasbro's marketing campaign in the early 2000s, making it one of the most widely recognisable Zoids of the franchise.