NID

Nid or NID may refer to:

Science

Nidogen-1, an extracellular protein
Neuronal intestinal dysplasia, a condition involving abnormalities with the nerves supplying the bowel

Namespace Identifier, part of a Uniform Resource Name
Network interface device, in telecommunications, providing demarcation between carrier and customer wiring

Naval Intelligence Department (Royal Navy), the intelligence arm of the British Admiralty from 1887 until 1912
National Institute of Cultural Heritage, a Polish governmental institution
National Institutes of Design, a group of Indian public design universities
National Institute of Design, the primary institute, in Ahmedabad, Gujarat
National Institute of Design, Andhra Pradesh, design school in Vijayawada, Andhra Pradesh
National Institute of Design, Madhya Pradesh, design school in Bhopal, Madhya Pradesh
National Institute of Design, Haryana, design school in Kurukshetra, Haryana
National Institute of Design, Assam, design school in Jorhat, Assam
Naval Intelligence Division (United Kingdom), of the British Admiralty, prior to 1965
Naval Intelligence Division (Israel), a staff unit in the Israeli navy headquarters
National Investigation Department of Nepal, an intelligence agency of Nepal
NID (Stargate), a fictional secret government organization in the television series Stargate SG-1
Nieuport-Delage, an aircraft company from the 1920s and 1930s

The Nidelva or Nid River in Trondheim, Norway
Nevada Irrigation District, in the Sierra Nevada foothills of California, organized to supply irrigation water

National Inventory of Dams, an American database documenting dams in the United States and its territories
Nieuwe Intercity Dubbeldekker, the renovated NS DD-AR train
Nimzo-Indian Defence, a chess opening
Srettha Thavisin (born 1962), nicknamed Nid, Prime Minister of Thailand