动物栖地，又称生境、栖地，是指围绕一个或多个「物种种群」（多个动物种类）栖息（生活和生长）的自然环境。

栖息地一词在生态学广泛被使用。它原本是指围绕一物种、或物种种族、或物种聚集、或群落的自然条件（Clements and Shelford, 1939）。因此它不只是一物种种族的栖息地，而是指很多物种的聚集，住在同一地方共用一个栖息地。生态学家会把很多物种共用的栖息地称为群落生境。

还有，这些栖息地可以和其他地方居住的群族不同。因此一般指的栖息地不是一个物种或个别动物。微小生境或小环境是指个别的动物和植物在其栖息地的直接环境和其他自然因素。

A habitat is an ecological or environmental area that is inhabited by a particular species of animal, plant, or other type of organism. The term typically refers to the zone in which the organism lives and where it can find food, shelter, protection and mates for reproduction, utilizing the qualities the species has adapted to survive within the ecology of the habitat. It is the natural environment in which an organism lives, or the physical environment that surrounds a species population.