E9 or E-9 may refer to:

Roads and trails

European walking route E9 The E9 European long distance path, E9 path or European Coastal Path (French: ''Sentier Européen du Littoral'') is one of the European long-distance paths, running for from Tarifa, Spain to Narva-Jõesuu in Estonia. In 2019, the southern termin ...

* E9, the Besraya Expressway in Malaysia * Kyoto Jūkan Expressway,

San'in Kinki Expressway is an incomplete expressway that, upon completion, will connect the San'in Expressway from Tottori interchange to the Kyoto Jūkan Expressway. When finished it will be about long. It is owned and operated by partly by the Kyoto Prefectural Road ...

and San'in Expressway, route E9 in Japan

Vehicles

* BMW E9, a two-door coupé built for BMW by Karmann from 1968 to 1975 * EMD E9, a diesel locomotive * E-9A Widget, U.S. Air Force range control aircraft

Other uses

E9 (countries) The E9 is a forum of nine countries, which was formed to achieve the goals of UNESCO's Education For All (EFA) initiative. The “E” stands for education and the “9” represents the following nine countries: Bangladesh, Brazil, China, Egypt, ...

a forum of nine highly populated countries *

E9 (Lie algebra) In mathematics, especially in Lie theory, E''n'' is the Kac–Moody algebra whose Dynkin diagram is a bifurcating graph with three branches of length 1, 2 and ''k'', with ''k'' = ''n'' − 4. In some older books and papers, ''E''2 and ''E''4 ar ...

(''E''₉), another name for the infinite dimensional affine Lie algebra *

E9 tuning E9 tuning is a common tuning for steel guitar necks of more than six strings. It is the most common tuning for the neck located furthest from the player on a two-neck console steel guitar or pedal steel guitar while a C6 neck is the one closer ...

, a common tuning for steel guitar necks of more than six strings * E9, a baseball scorekeeping abbreviation for an error on the right fielder * E9, a postcode district in the E postcode area of the London postal district * Boston-Maine Airways IATA code * E-9, a

U.S. uniformed services pay grade Pay grades are used by the eight uniformed services of the United States (United States Army, Army, United States Marine Corps, Marine Corps, United States Navy, Navy, United States Air Force, Air Force, United States Space Force, Space Force, ...

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