动物囤积症（英语：animal hoarding）是指在一定范围内囤积了超过一般常见数量之动物，却没有能力安置照料这些动物。这种囤积症为虐待动物之行为，但更精确来说可被视为一种精神病的症状。患者强烈依赖他们的动物，完全无法容忍让动物离去。他们通常无法理解自己这种不提供动物适当照料之方式，已经是伤害动物了。患者倾向于相信他们有提供这些动物足够的照顾。美国动物虐待防治协会（ASPCA, American Society for the Prevention of Cruelty to Animals）成立一个「囤积防治小组」，和患者一起行动，目标是帮助患者创建正确的观念，仅照顾适当数量的动物，以确保这些动物能健康生活。

Animal hoarding is keeping a higher-than-usual number of animals as domestic pets without having the ability to properly house or care for them, while at the same time denying this inability. Compulsive hoarding can be characterized as a symptom of mental disorder rather than deliberate cruelty towards animals. Hoarders are deeply attached to their pets and find it extremely difficult to let the pets go. They typically cannot comprehend that they are harming their pets by failing to provide them with proper care. Hoarders tend to believe that they provide the right amount of care for their pets. The American Society for the Prevention of Cruelty to Animals provides a "Hoarding Prevention Team", which works with hoarders to help them attain a manageable and healthy number of pets.