XN may refer to:
* "xn--" in the ASCII representation of
internationalized domain name
An internationalized domain name (IDN) is an Internet domain name that contains at least one label displayed in software applications, in whole or in part, in non-latin script or alphabet, such as Arabic, Bengali, Chinese (Mandarin, simplified ...
s
*
Christian
Christians () are people who follow or adhere to Christianity, a monotheistic Abrahamic religion based on the life and teachings of Jesus Christ. The words ''Christ'' and ''Christian'' derive from the Koine Greek title ''Christós'' (Χρι ...
, based on the Greek letter Chi used by early Christians
*
Nordic Patent Institute
The Nordic Patent Institute (NPI) is an intergovernmental organisation established by the governments of Denmark, Iceland and Norway.[nuclear reaction
In nuclear physics and nuclear chemistry, a nuclear reaction is a process in which two atomic nucleus, nuclei, or a nucleus and an external subatomic particle, collide to produce one or more new nuclides. Thus, a nuclear reaction must cause a t ...](_blank)
that is expected to produce one or more neutrons
*
Xpress Air (IATA code XN, 2003-2021), an Indonesian airline
{{disambiguation