%0 Journal Article %T What is a Singularity in Geometrized Newtonian Gravitation? %A James Owen Weatherall %J Physics %D 2013 %I arXiv %X I discuss singular spacetimes in the context of the geometrized formulation of Newtonian gravitation. I argue first that geodesic incompleteness is a natural criterion for when a model of geometrized Newtonian gravitation is singular, and then I show that singularities in this sense arise naturally in classical physics by stating and proving a classical version of the Raychaudhuri-Komar singularity theorem. %U http://arxiv.org/abs/1308.1722v1