N2, N-2 may be:

• N2, the chemical formula for nitrogen gas
• N2 is the United States Navy term for a senior military intelligence officer
• N2 diagram, a function to function data interchange
• N 2 Gether Now, a 1999 song by nu metal band Limp Bizkit
• DSC-N2, a 2006 Sony Cyber-shot series digital camera
• N2, a postcode district in the N postcode area
• NicoNico, N2 company logo for niconico live video
• The fourth level in the Japanese Language Proficiency Test

Nitrogen is a chemical element with symbol N and atomic number 7. It is the lightest pnictogen and at room temperature, it is a transparent, odorless diatomic gas. Nitrogen is a common element in the universe, estimated at about seventh in total abundance in the Milky Way and the Solar System. On Earth, the element forms about 78% of Earth's atmosphere and as such is the most abundant uncombined element. The element nitrogen was discovered as a separable component of air, by Scottish physician Daniel Rutherford, in 1772.

N2, N-2 may be:

• N2, the chemical formula for nitrogen gas
• N2 is the United States Navy term for a senior military intelligence officer
• N2 diagram, a function to function data interchange
• N 2 Gether Now, a 1999 song by nu metal band Limp Bizkit
• DSC-N2, a 2006 Sony Cyber-shot series digital camera
• N2, a postcode district in the N postcode area
• NicoNico, N2 company logo for niconico live video
• The fourth level in the Japanese Language Proficiency Test

Nitrogen is a chemical element with symbol N and atomic number 7. It is the lightest pnictogen and at room temperature, it is a transparent, odorless diatomic gas. Nitrogen is a common element in the universe, estimated at about seventh in total abundance in the Milky Way and the Solar System. On Earth, the element forms about 78% of Earth's atmosphere and as such is the most abundant uncombined element. The element nitrogen was discovered as a separable component of air, by Scottish physician Daniel Rutherford, in 1772.