Conewago Township is a township in Dauphin County, Pennsylvania, United States. The population was 2,997 at the 2010 census.

Derry Township is a township in Dauphin County, Pennsylvania, United States. The population was 24,796 at the 2020 census, an increase over the figure of 24,679 tabulated in 2010. Hershey, the site of the well-known Hershey's chocolate factory and its affiliated amusement park, is located within the township. Pennsylvania State University's Milton S. Hershey Medical Center and the Penn State Hershey Children's Hospital are also located on a large tract of land in the township.