The following is a list of events of the year 2023 in Pennsylvania.

Incumbents State government Governor: Tom Wolf (D) (until January 17), Josh Shapiro (D) (starting January 17)

Events March 24 – 2023 Pennsylvania chocolate factory explosion: Seven people are killed and many others are injured after an explosion at a chocolate factory in West Reading. June 11 – 2023 Interstate 95 highway collapse: A section of Interstate 95 in Philadelphia collapses after a tanker truck catches fire under an overpass. June 16 – Pittsburgh synagogue shooting: The gunman in the 2018 Pittsburgh synagogue shooting in Pennsylvania, the deadliest antisemitic attack in U.S. history, is found guilty on 63 charges. July 3 – 2023 Kingsessing, Philadelphia shooting: Five people are killed and two others are injured in a shooting spree in Philadelphia, August 12 – Four people are killed and one other injured following a house explosion in Allegheny that destroyed three structures and damaged at least a dozen others. September 13 – Escaped U.S. fugitive Danilo Cavalcante is captured in Pennsylvania by a team of tactical officers after a two-week manhunt.

See also 2023 in the United States List of years in Pennsylvania

References