Campbelltown is an unincorporated community and census-designated place (CDP) in Lebanon County, Pennsylvania, United States.

Campbelltown is located in southwestern Lebanon County at 40°16′42″N 76°35′3″W / 40.27833°N 76.58417°W / 40.27833; -76.58417 (40.278200, -76.584149),[4] in the northern part of South Londonderry Township.

U.S. Route 322 passes through the center of Campbelltown, leading west through the southern part of Hershey 18 miles (29 km) to Harrisburg, the state capital.

According to the United States Census Bureau, the Campbelltown CDP has a total area of 2.9 square miles (7.6 km2), all land.

The first European settlers to the Lebanon Valley area were namely Scotch-Irish and German Palatinate immigrants who left their homelands due to a number of political, economic and religious reasons.

[6] In 1751, a Scotch-Irish immigrant by the name of John Campbell came to Pennsylvania and settled in the area then known as Derry Township in Lancaster County.

[7] Early Campbelltown served as a stop on the main trolley en route connecting Philadelphia and Harrisburg.

[7] Thanks to Milton S. Hershey, the arrival of public transportation in the form of a street railway in 1908 provided the citizens with the chance to travel beyond the boundaries of the village, including to the cities of Harrisburg, Lebanon, and beyond.

On July 14, 2004, around 3 pm, a tornado warning was issued by the National Weather Service for Lebanon County.

A few moments later, an F3 tornado with winds over 160 miles per hour (260 km/h) struck the extreme southeast part of the village.

[13] The proposed architecture is loosely based on that used throughout historic Campbelltown and will be designed to function as a traditional town square.

[15] In 1988 the people of Campbelltown voted to lend the bell to the new ship HMS Campbeltown (F86) for as long as she remained in Royal Navy service.

A new Type 31 HMS Campbeltown was announced as part of the new Inspiration class of frigates for the Royal Navy on May 19, 2021.