Intersection has various meanings in different contexts:

• In mathematics and geometry
• Intersection (set theory), the set of elements common to some collection of sets.
• Line-line intersection
• Line-plane intersection
• Line–sphere intersection
• Intersection of a polyhedron with a line
• Line segment intersection
• Intersection theory
• Intersection (road), a place where two roads meet (line-line intersection)
• Intersection (aviation), a virtual navigational fix

Intersection may also refer to:

• Intersection (film), a 1994 remake of the French film Les Choses de la vie.
• an element in the Reality TV series The Amazing Race. It requires two teams to join together and complete tasks as a newly conjoined team until further notice.
• Intersections (1985-2005), a 2006 box set released by Bruce Hornsby.
• Intersection (convention), the 53rd World Science Fiction Convention, held in Glasgow, Scotland, in 1995

Intersect redirects here. It may refer to:

• an intelligence database that is the central plot device in the TV series Chuck.