M line may refer to: * M-line (mittel line or middle line), a structure in a muscle sarcomere *

M Ocean View The M Ocean View is a Muni Metro light rail line in San Francisco San Francisco (; Spanish language, Spanish for "Francis of Assisi, Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cul ...

, a light rail and former streetcar line in San Francisco, California *

McKinney Avenue Transit Authority The McKinney Avenue Transit Authority (MATA), a non-profit organization, operates the M-line Trolley in Dallas, Texas ( USA). The offices and car barn are located at 3153 Oak Grove, Dallas, TX 75204. In operation since 1989, it is an example ...

, a streetcar line in Dallas, Texas also named the M-Line *

M (Los Angeles Railway) M refers to several streetcar routes in Los Angeles, California. The lines were operated by the Los Angeles Railway from 1917 to 1941. History The Homeward Avenue Line ran on Moneta Avenue and Athens Way. It began as a new routing of two form ...

, a former streetcar service *Geometrisches Mittel, or

Geometric mean In mathematics, the geometric mean is a mean or average which indicates a central tendency of a set of numbers by using the product of their values (as opposed to the arithmetic mean which uses their sum). The geometric mean is defined as the ...

* M Line (Kintetsu), Japanese railwayline

See also