Jori Leszczynski is the Director of the Office of Laboratory Animal Resources and University Veterinarian at the University of Colorado Denver. She is also an Associate Professor in the Department of Pathology in the School of Medicine. She attended The Ohio State University for her Bachelors and Veterinary degrees and received residency training in laboratory animal medicine at the University of Illinois at Chicago. She has been a Diplomate of the American College of Laboratory Animal Medicine (ACLAM) since 2004. She has held several other leadership roles in animal facilities including the Cleveland Clinic Foundation, National Jewish Health, and University of Colorado Boulder. In all of her positions she has focused on program management, compliance, personnel management, budget, husbandry, and clinical management of the species she oversees.

Dr. Leszczynski is actively involved in professional organizations and has served on committees and in leadership positions for ACLAM and the American Society for Laboratory Animal Practitioners (ASLAP). She served as President of the Mile High Branch for the American Association for Laboratory Animal Science (AALAS) and is currently the Co-Chair of the Program Committee for the Public Responsibility of in Medicine and Research (PRIM&R) IACUC Conference. She is a lecturer and on the organizing committee for the AALAS Institute for Laboratory Animal Management (ILAM).