Barry Andrew Trimmer is an American scientist, and the Henry Bromfield Pearson Professor of Natural Sciences at Tufts University. In addition to his primary appointment in the Department of Biology he holds secondary appointments in Biomedical Engineering and in Neuroscience at the Tufts Graduate School of Biomedical Science. His research primarily focuses on neurobiology, biomechanics / neuromechanics and soft-bodied locomotion.