This article explores the growing role of agri-food by-products in the rabbit farming within the European Union. With the push towards a more sustainable agricultural model, integrating by-products such as oilseed meals, fruit pomaces, and cereal brans into rabbit feeds provides both economic and environmental benefits. However, challenges such as nutritional variability, supply chain logistics, and regulatory constraints must be overcome to fully unlock their potential. This article evaluates the current availability of agri-food by-products in the EU, their nutritional composition, and their use in rabbit nutrition, offering a pathway to greater resource efficiency in rabbit farming.