E11

E11 is a designation used in several systems to identify different things, and its meaning depends on context.

In the European road network, the European route E11 is part of the International E-road network overseen by the United Nations Economic Commission for Europe. The route designation is used on maps and signs to indicate a long-distance roadway that links multiple countries and regional centers across Europe. The exact alignment and endpoints of E11 are defined by national authorities and can be updated as infrastructure projects advance.

In the United Kingdom, E11 is a London postcode district within the E postcode area. It covers parts of east London, including areas around Leytonstone and Wanstead, and straddles the London Borough of Redbridge and the London Borough of Waltham Forest. Postcodes beginning with E11 are used for mail delivery, local identity, and service planning. The district is served by multiple public transport options, with nearby Underground and rail stations connecting to central London and other districts.

Other uses of the label E11 may exist in different domains, such as product codes, technical standards, or regional designations, depending on the system in question.