Lancaster Historic District may refer to, in the United States: (by state) Lancaster Commercial Historic District (Lancaster, Kentucky), Lancaster, Kentucky, listed on the National Register of Historic Places (NRHP) Lancaster Historic District (Lancaster, Ohio), NRHP-listed Lancaster Methodist Episcopal Camp Ground Historic District, Lancaster, Ohio, listed on the NRHP in Fairfield County, Ohio Lancaster West Main Street Historic District, Lancaster, Ohio, listed on the NRHP in Fairfield County, Ohio Lancaster City Historic District, Lancaster, Pennsylvania, listed on the NRHP in Lancaster, Pennsylvania Lancaster Historic District (Lancaster, Pennsylvania), listed on the NRHP in Lancaster, Pennsylvania Northeast Lancaster Township Historic District, Lancaster, Pennsylvania, listed on the NRHP in Lancaster, Pennsylvania Lancaster Downtown Historic District, Lancaster, South Carolina, listed on the NRHP in Lancaster County, South Carolina Lancaster Court House Historic District, Lancaster, Virginia, NRHP-listed