List of Available Design Patterns - GOF.

Creational Design Pattern
1) Abstract Factory pattern
2) Builder pattern
3) Factory pattern
4) Prototype pattern
5) Singletone pattern

Structural Design Pattern
1) Adapter
2) Bridge
3) Composite
4) Facade
5) Flyweight
6) Proxy

Behaviroral Design Pattern
1) Chain of responsiblity
2) Composite
3) Interpretor
4) Iterator
5) Memento 
6) Observer 
7) State 
8) Strategy 
9) Template Method 
10) Visitor