伪图（英语：pseudograph）或多重图（multigraph）是一个允许有多重边的图，也就是有至少二个边的二个顶点完全相同，至少有二个顶点可以由二个边相连接。

In mathematics, and more specifically in graph theory, a multigraph is a graph which is permitted to have multiple edges (also called parallel edges), that is, edges that have the same end nodes. Thus two vertices may be connected by more than one edge.