The Long March 2D, also known as the Chang Zheng 2D, CZ-2D, and LM-2D, is a Chinese two-stage orbital carrier rocket mainly used for launching LEO and SSO satellites.

Magnetic 2D materials or magnetic van der Waals materials are two-dimensional materials that display ordered magnetic properties such as antiferromagnetism or ferromagnetism.

the native two-dimensional graphics rendering API for macOS and iOS platforms, part of the Core Graphics framework.

one of the Astra communications satellites owned and operated by SES and located at 28.2° East in the geostationary orbit until June 2015.