GID
GID stands for:
- Internal gas pressure injection molding
- Genetic Ethical Information Service , a bi-monthly magazine on genetic and reproductive technology
- Gender Identity Disorder , English for gender identity disorder
- General Intelligence Directorate or Da'irat al-Muchabarat al-Amma ( Arabic : دائرة المخابرات العامة), Jordanian intelligence service
- Grazing Incidence Diffraction , English for X-ray diffractometry with grazing incidence
- Group Identifier , the identifier of a user group ; see Unix commands for user and rights management
GiD stands for:
- Gas power process with integrated steam injection (short: integrated gas-steam process), a process for enriching the combustion air of gas turbine systems with steam generated in the waste heat boiler