Originally an Acronym for European Computer Manufacturers Association, an industry association dedicated to the standardization of Information and Communication Technology (ICT) Systems.
Interesting standards published by ECMA include ECMAScript, OOXML and C#.
ECMA was founded in 1961 and changed name to Ecma International in 1994 because their focus had expanded beyond Europe. According to their website, their aims are:
ECMA-262
Also known as ECMAScript.
ECMA-334
Also known as C#.
ECMA-376
Also known as Office Open XML or OOXML.
2 pages link to ECMA: