Subgraph
A Graph 
whose Vertices and Edgesform subsets of the Vertices and Edges of a given Graph 
. If is a subgraph of , then is said to be a Supergraph of .
- Ghost
- Gibbs Constant
- Gibbs Effect
- Gibbs Phenomenon
- Gigantic Prime
- Gilbrat's Distribution
- Gilbreath's Conjecture
- Gill's Method
- Gingerbreadman Map
- Girard's Spherical Excess Formula
- Girko's Circular Law
- Girth
- Giuga Number
- Giuga's Conjecture
- Giuga Sequence
- Glaisher-Kinkelin Constant
- Glide
- Glissette
- Global C(G;T) Theorem
- Global Extremum
- Global Maximum
- Global Minimum
- Globe
- Glove Problem
- Glue Vector