Line L may refer to: L (New York City Subway service), a New York City subway line L-Line (Norfolk Southern), a rail line in North Carolina L Line (RTD), a light rail line in Denver L Taraval, a streetcar line in San Francisco L Line (Los Angeles Metro), a former light rail line in Los Angeles County, California L (Los Angeles Railway), a former streetcar line in Los Angeles L (SEPTA Metro), one of three subway lines in Philadelphia.
See also Chicago "L", the Chicago rapid transit system Market-Frankford Line in Philadelphia, known as “the El” Ł, letter in the Polish alphabet L series (disambiguation)