Lawrence Samuel Krasner is an American lawyer who is the 26th District Attorney of Philadelphia. Elected to the position in 2017, Krasner was one of the first in the United States to run as a self-described "progressive prosecutor". He campaigned on a platform to reform elements of the criminal justice system, including reduced incarceration.

The office of the District Attorney of Philadelphia is the largest prosecutor's office in the state of Pennsylvania and oversees a jurisdiction that includes more than 1.5 million citizens of both the city and county of Philadelphia. The current District Attorney of Philadelphia is Larry Krasner. The district attorney represents the Commonwealth of Pennsylvania and the City & County of Philadelphia in all criminal and other prosecutions.