The term "clique graph" may refer to: Complete graph, a graph in which every two vertices are adjacent Clique (graph theory), a complete subgraph Clique graph, the intersection graph of maximal cliques Simplex graph, a graph with a vertex for each clique in the original graph, with an edge between vertices that represent cliques that differ by exactly one vertex
See also Cluster graph, a graph in which each component is a clique