Interest Rate Swaps

Vanilla Swap

This is a Fixed / Floating swap in the same currency.

Overnight Index Swap

This is a Fixed / Floating swap (in the same currency ?) traded overnight.

Basis Swap

This is a Floating / Floating swap in the same currency.

Cross Currency Swap

This is a Fixed / Floating swap in different currencies.

Cross Currency Basis Swap

This is a Floating / Floating swap in different currencies.

Cross Currency Swap

Trigger Swap
Inflation Swap
Dividend Swap
Volatility Swap (also known as Variance Swap)
Quanto Swap

Different Currencies

Swaps where the different legs are in different currencies are called Cross Currency Swaps