Black triangle may refer to one of the following:
- Black triangle (pharmacology), suffixed to the trade name of a British medicine indicates the drug (or its mode of use) is new
- Black triangle (badge), a Nazi concentration camp badge worn by inmates deemed "asocial"
- Black triangle symbol of lesbian or feminist pride and solidarity.
- Black triangle (UFO), a type of UFO sighting
- Black triangle, in Unicode Geometric Shapes (e.g.: ▼ ◀ ◣) special code for printing a variety of shapes including various black triangles
- The nickname given to the triangular area south of Montreal worst affected by a long term blackout during the North American ice storm of 1998
- The nickname for one of Europe's most polluted areas- the area where Germany, Poland and the Czech Republic meet.
Famous quotes containing the word black:
“Long sibilant-muscled trees
Were lifting up, the black poplars.”
—Philip Larkin (1922–1986)