ES

Es, ES, or similar may refer to:

Arts and entertainment

An alternate name for the musical note E♭ (E-flat)
E's, a manga series by Satoru Yuiga
Es (film), the German title of It, a 1966 West German film directed by Ulrich Schamoni
ES (Eternal Sabbath), a manga by Fuyumi Soryo
ES, a supplement of the Evening Standard newspaper

Es, a phonetic spelling of the Latin alphabet letter S
-es, a word ending
Spanish language (ISO 639 alpha-2 language code)
Es (cyrillic), a letter in the Cyrillic alphabet that looks like the Latin letter C

Spain (ISO 3166-1 country code)
- .es, top-level Internet domain for Spain
El Salvador (FIPS 10-4 country code)
Espírito Santo, a state in Brazil (ISO 3166-2:BR code)
Eš, a village in the Czech Republic
ES, an abbreviation for "elementary school", as seen on some maps, etc. (e.g., Matsukage ES, Yawatahama, Japan)
CIA cryptonym for Guatemala

.es, the top-level Internet domain for Spain
Es (operating system), an operating system originally developed by Nintendo and since 2008 by Google
es (Unix shell), a Unix command shell and functional programming language
ES EVM, a Soviet series of IBM computer clones
ES register, in x86 computer architecture
ECMAScript, popularly known as JavaScript
Elasticsearch, a search engine
Elementary stream, part of the MPEG communication protocol
Expert system, software which automates decision making

Edison screw, a type of lightbulb socket whose sizes are preceded with ES (e.g. ES14, ES27)
Einsteinium, the chemical element with symbol Es
Embryonic stem cell, a type of pluripotent stem cell derived from an early-stage embryo
Exasecond (Es), an SI unit of time
Exasiemens (ES), an SI unit of electric conductance

Es, the German term for the id, one of the psychic apparatus defined in Sigmund Freud's structural model of the psyche
Série économique et sociale, a specialization within the French academic "baccalauréat" degree
Expected shortfall, a measure of risk