Trees
- Acyclic Graph
- Alkane Graph
- Assembly Number
- B-Tree
- Banana Tree
- Bicentered Tree
- Binary Tree
- Borel Determinacy Theorem
- Branch
- Calkin-Wilf Tree
- Caterpillar Graph
- Cayley Tree
- Centered Tree
- Child
- Claw Graph
- Claw Graph
- Complete Binary Tree
- Complete Ternary Tree
- Complete Tree
- Cotree
- Dendrite
- Dijkstra Tree
- Eve
- Extended Binary Tree
- External Path Length
- Fan
- Forest
- Fork
- Free Tree
- Fully Forested Graph
- Good Will Hunting Problems
- Graceful Tree Theorem
- Homeomorphically Irreducible Tree
- Internal Path Length
- Kirchhoff's Matrix-Tree Theorem
- Kruskal's Algorithm
- Kruskal's Tree Theorem
- Labeled Tree
- Limb
- Lobster
- Lobster Graph
- M-Tree
- Matrix Tree Theorem
- Maximally Graceful Tree
- Maximum Leaf Number
- Maximum Spanning Tree
- Minimum Leaf Number
- Minimum Spanning Tree
- Ordered Tree
- Oriented Tree
- Otter's Theorem
- Planted Planar Tree
- Planted Tree
- Prüfer Code
- Pseudoforest
- Pseudotree
- Quadtree
- Red-Black Tree
- Root Vertex
- Rooted Tree
- Series-Reduced Tree
- Sibling
- Son
- Spanning Tree
- Splay Tree
- Steiner Tree
- Stern-Brocot Tree
- Stern's Diatomic Series
- Strongly Binary Tree
- Subtree
- Taylor's Condition
- Ternary Tree
- Tree
- Tree Decomposition
- Tree Height
- Tree Leaf
- Tree Spread
- TreeGraphQ
- Treewidth
- Tripod
- Trivalent Tree
- Twig
- Unrooted Tree
- Vertex Depth
- Vertex Height
- Weakly Binary Tree
- Wedderburn-Etherington Number
- Weighted Tree