Quadrilateral (disambiguation)

The word quadrilateral can refer to:

Quadrilateral, in geometry, a polygon with 4 sides
Complete quadrilateral, in projective geometry, a configuration with 4 lines and 6 points
Chicago-Lambeth Quadrilateral, a four-point statement of fundamental doctrine, in the Anglican Communion
Wesleyan Quadrilateral, the four sources of doctrine in the Methodist Church
In history and geography
- Quadrilatero, in the Revolutions of 1848, in the Italian states - an area within the group of fortresses at Mantua, Verona, Peschiera and Legnago
- In the Battle of the Somme in World War I, the Quadrilateral was a German redoubt near Ginchy
- Southern Dobruja, which has passed from Bulgaria to Romania in 1913, and back to Bulgaria in World War II
Golden Quadrilateral, a network of highways in India
Golden Quadrilateral (Indian Railways)
Quadrilateral Security Dialogue, a strategic alliance of the United States, Japan, Australia and India within Asia.