The Philadelphia History Museum was a public history museum located in Center City, Philadelphia from 1938 until 2018. From 1938 until 2010, the museum was known as the Atwater Kent Museum. The museum occupied architect John Haviland's landmark Greek Revival structure built in 1824–1826 for the Franklin Institute. The Museum operated as a city agency as part of Philadelphia's Department of Recreation. The building was listed on the National Register of Historic Places on August 1, 1979.

Arthur Atwater Kent Sr. was an American inventor and prominent radio manufacturer based in Philadelphia. In 1921, he patented the modern form of the automobile ignition coil.