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Shrews are a morphologically and ecologically diverse group of small-bodied mammals, ranging in body mass from under 2 grams to around 100 grams. Their diversity and size makes them an excellent model for investigating the effects of small body size on the ecomorphology of the skeleton. We want to investigate if there is ecologically informative variation in skeletal morphoogy of these tiny mammals, and if so, does the relationship between shape and ecology vary across body size? Using μCT scans of skeletons from the Field Museum of Natural History, we quantified morphology of the middle lumbar vertebra in 25 species of shrews via 3D geometric morphometrics. Because the lumbar spine is heavily involved in mammalian locomotion, we analyzed the correlation between locomotor mode and vertebral shape, as well as between centroid size and vertebral shape. We found no statistically significant association between centroid size and locomotor group,or between size and shape. However, we found variation in vertebral morphology across locomotor groups, with notable shape differences in centrum aspect ratio, height of the neural arch, and location of the transverse processes. Fossorial and scansorial species diverge the most from the overall mean shape. We also recovered phylogenetic signals associated with shape. Future work will refine the relationship between shape and bone performance under various loading scenarios and enable us to better separate functional from phylogenetic effects.