Despite being common, the problematization of animals is ill-understood and undertheorized in urban geography. Being problematized has significant implications for animals: not only in how they are subjected to violent disciplinary practices but also in how they are made epistemically visible (or not) as urban subjects. That is, problematization objectifies animals and can contribute to their physical and epistemic in/visibility in cities. One effect of problematization is that it makes some animals visible to the historical record as problems. Consequently, scholars often write urban histories and analyses that reconstitute these animals as problematic objects, failing to recognize that problematization involves multispecies power relations that animals experience. This article offers a theoretical framework for analyzing the problematization of urban animals. It requires understanding problematization as a sociospatial and historical process in which animals come to be discursively constituted as problems in urban regulation, and materially managed as such through disciplinary practices that frequently rely on material and spatial interventions. I argue that a spatial awareness is essential to telling multispecies histories and geographies that attempt to grapple with problematization as a process as well as its impacts on the experiences of animals.