List of self-intersecting polygons

{{Short description|Sub-list of the list of polytopes}}

Self-intersecting polygons, crossed polygons, or self-crossing polygons are polygons some of whose edges cross each other. They contrast with simple polygons, whose edges never cross.

Some types of self-intersecting polygons are:

• the crossed quadrilateral, with four edges
• the antiparallelogram, a crossed quadrilateral with alternate edges of equal length
• the crossed rectangle, an antiparallelogram whose edges are two opposite sides and the two diagonals of a rectangle, hence having two edges parallel
• Star polygons
• pentagram, with five edges
• hexagram, with six edges
• heptagram, with seven edges
• octagram, with eight edges
• enneagram or nonagram, with nine edges
• decagram, with ten edges
• hendecagram, with eleven edges
• dodecagram, with twelve edges
• icositetragram, with twenty four edges
• 257-gram, with two hundred and fifty seven edges