Trapezium

Trapezium, plural trapezia, may refer to:


 * Trapezium, in British and other forms of English, a trapezoid, a quadrilateral that has exactly one pair of parallel sides
 * Trapezium, in North American English, an irregular quadrilateral with no sides parallel
 * Trapezium (bone), a bone in the hand
 * Trapezium Cluster, a group of stars in the Orion Nebula
 * Trapezia (genus), guard crabs
 * Trapezium (novel), a Japanese novel by Kazumi Takayama