A Baltimore accent, also known as Baltimorese (sometimes jokingly written Bawlmerese or Ballimorese, to mimic the accent), commonly refers to an accent or sub-variety of Philadelphia English that originates among blue-collar residents of Baltimore, Maryland. It extends into the Baltimore metropolitan area and northeastern Maryland.

At the same time, there is considerable linguistic diversity within Baltimore, which complicates the notion of a singular "Baltimore accent". According to linguists, the accent of white blue-collar Baltimoreans is different than the African-American Vernacular English accent of black Baltimoreans. White working-class families who migrated out of Baltimore along the Maryland Route 140 and Maryland Route 26 corridors brought local pronunciations with them.