William H. Milliken Jr. was an American politician from Pennsylvania who served as a Republican member of the U.S. House of Representatives for Pennsylvania's 7th congressional district from 1959 to 1965. He served in the Pennsylvania House of Representatives for Delaware County from 1943 to 1946 and from 1949 to 1950.

Sharon Hill is a borough in Delaware County, Pennsylvania, United States. The population was 5,697 at the 2010 census. Currently the population stands at 6,356 residents.