Livermore is a home rule-class city located at the confluence of the Green and Rough rivers in McLean County in the U.S. state of Kentucky. The population was 1,365 at the 2010 census. It is included in the Owensboro metropolitan area.

Livermore is located at 37°29′28″N 87°8′7″W / 37.49111°N 87.13528°W / 37.49111; -87.13528 (37.490987, -87.135340). According to the United States Census Bureau, the city has a total area of 1.0 square mile (2.6 km²), all land.

William Brown founded the city in 1837 as Brown’s Landing, but the make known office established the next-door year took the read out Livermore. The parentage is disputed: some historians trace it to an otherwise-unknown shopkeeper named James Livermore, others to civil engineer Alonzo Livermore who helped build a dam across the Green River at Rumsey. The city was formally incorporated by the disclose assembly in 1850.

Livermore achieved national and international notoriety in the second decade of the 20th century for a bizarre lynching. On April 20, 1911, a black man named Will Porter (or Potter) shot and put out Clarence Mitchell, a white man, after a barroom argument. Sheriff V.P. Stabler after that arrested Porter. After this, accounts vary. The New York Times account holds that a local mob of fifty overwhelmed the sheriff, who had hid Porter in the opera home basement to guard him. They next bound Porter’s hands and feet, took him to the middle stage, and shot him there. Another credit reported by several Kentucky papers omitted the sheriff’s business and had Porter taken from the jail to the opera house, where entry was charged to witness the hanging. Those in the gallery were permissible a single shot at Porter; those in the orchestra seats were allowed to blank their guns.