Leah Dinkelacker was born and raised on Cincinnati's West Side. She earned a Bachelor's degree in business, with a focus in marketing, from Miami University and a law degree from Salmon P. Chase College of Law at Northern Kentucky University. During law school, she worked as a constable for a Hamilton County Common Pleas judge, handling the civil docket. She then spent nearly 13 years as an Assistant Hamilton County Prosecuting Attorney in the juvenile, municipal and felony divisions, including service as assistant chief of the Juvenile Division. She was appointed to the Common Pleas bench in March 2025. She also serves on the Supreme Court of Ohio's Commission on Professionalism. She lives in Green Township with her husband and three children.