Epsilon (disambiguation)

Epsilon (Ε, ε) is the fifth letter of the Greek alphabet.

Epsilon may also refer to:

Aviation

 * Advance Epsilon, a Swiss paraglider design
 * Socata TB 30 Epsilon, a French training aircraft design

Books

 * Epsilon, the lowest caste of the World State in the novel Brave New World

Film and TV

 * E Channel, also known as Epsilontv, former name of Open TV, a Greek TV channel
 * Epsilon, an AI fragment in the web series Red vs. Blue
 * Epsilon (film) (also titled Alien Visitor) (1995) AustralianItalian science fiction film by Rolf de Heer
 * Epsilon TV, a Greek regional TV channel

Music

 * Epsilon (Blood Stain Child album)
 * Epsilon (Dreamtale album)

Video games

 * Epsilon, an antagonist in the video game Mega Man X: Command Mission
 * The Epsilon Program, a fictional religious cult in the video game Grand Theft Auto V

Mathematics

 * Error in numerical analysis:
 * Machine epsilon, an error bound in computer arithmetic
 * absolute value of an approximation error
 * The epsilon operator introduced by Hilbert
 * An infinitesimal value

Technology

 * EPSILON (programming language)
 * Epsilon (text editor)
 * Epsilon (rocket), a Japanese solid-fuel satellite launcher
 * GM Epsilon platform, an automobile platform
 * Hyundai Epsilon engine

Other uses

 * Epsilon (wasp), a genus of wasps
 * Hurricane Epsilon (2005)
 * Hurricane Epsilon (2020)
 * Lancia Epsilon, a car produced by Lancia
 * MS Epsilon, a ROPAX ferry
 * A subsidiary of marketing company Alliance Data
 * SARS-CoV-2 Epsilon variant, a variant of SARS-CoV-2, the virus that causes COVID-19