The Edmond post office shooting was a mass shooting that occurred in Edmond, Oklahoma, on August 20, 1986. In less than fifteen minutes, postal worker Patrick Sherrill pursued and shot several coworkers, killing 14 and injuring another six, before committing suicide. The deadliest workplace shooting in U.S. history, Sherrill's attack inspired the American phrase "going postal".

Edmond is a city in Oklahoma County, Oklahoma, United States, and a part of the Oklahoma City metropolitan area in the central part of the state. The population was 94,428 according to the 2020 United States Census, making it the fifth largest city in Oklahoma.

The city borders the northern boundary of Oklahoma City. Public transportation is provided by Citylink Edmond bus service.