Undirected graph
graph for which the relations between pairs of vertices are symmetric
free tree
Hall–Janko graph
bishop's graph
queen's graph
Paley graph
butterfly graph
crown graph
Holt graph
Gray graph
Hoffman graph
Meredith graph
Pappus graph
Robertson–Wegner graph
Tietze's graph
unit disk graph
Tetrahedral graph
intersection graph
semi-symmetric graph
polyhedral graph
complete graph
bouquet graph
block graph
Comparability graph
Hanoi graph
king's graph
lattice graph
Rado graph
random geometric graph
unit distance graph
triangle-free graph
well-covered graph
spanning tree
Petersen graph
McGee graph
wheel graph