A baseline is a line that is a base for measurement or for construction. The word baseline may refer to: * Baseline (configuration management), the process of managing change * Baseline (sea), the starting point for delimiting a coastal state's maritime zones ** Baselines of the Chinese territorial sea ** Baselines of Indonesia ** Baselines of the Philippines * Baseline, in Glossary of underwater diving terminology#baseline, underwater diving, a value used to convert cylinder pressure of a tank to free gas volume * Baseline (surveying), a line between two points of the earth's surface and the direction and distance between them * Baseline (typography), the line upon which most letters "sit" and below which descenders extend * Baseline (budgeting), an estimate of budget expected during a fiscal year * Baseline (medicine), information found at the beginning of a study * Baseline (pharmacology), a person's state of mind or being, in the absence of drugs * The isoelectric line of an electrocardiogram * Baseline (interferometry), the length of an astronomical interferometer The name Baseline may refer to: * Baseline (magazine), ''Baseline'' (magazine), a magazine devoted to typography, book arts, graphic design * Baseline (database), a TV and movie industry database * Baselines (album), ''Baselines'' (album), the 1983 debut album of composer Bill Laswell * Baseline Road (Arizona), a major east–west artery in Phoenix, Arizona * Baseline Road (Colorado), a major east–west artery in Boulder, Colorado * Baseline Road (Ottawa), a major east–west artery in Ottawa, Ontario * Baseline station, a transitway station in Ottawa * Base Line, Arkansas * Baseline Nunataks * Baseline Rock It may also refer to: * The Baseline (baseball), base line in baseball * The back line on a tennis court, and also a style of play in tennis; see tennis strategy * The back line on a Glossary of pickleball terms#B, pickleball court * The end line on a basketball court * A bassline in music * A shifting baseline in statistics * Baseline Killer, a serial killer who was active in the Phoenix metro area between August 2005 and June 2006

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