E17

E17 or E-17 may refer to:
 * Queen's Indian Defence, Encyclopaedia of Chess Openings code
 * European route E17, a road through Belgium and eastern France
 * East 17, a British pop group, also known as E17
 * Enlightenment (X window manager) release 17
 * E17, a postcode district in the E postcode area for east London
 * Ever 17: The Out of Infinity, a Japanese video game
 * E17 screw, a type of Edison lightbulb screw
 * HMS E17, a British submarine of World War I
 * Kan-etsu Expressway, route E17 in Japan
 * Butterworth Outer Ring Road, route E17 in Malaysia

Enlightenment