A new haircut

I have extremley thick and wavy hair and I need to get it cut. what kind of haircut should I get to make it appear thinner but I can still wear it wavy OR straight??

Usually a layered cut can make thick hair apear thinner and less full.

First of all, it sounds like you have gorgeous hair, so why would you even want to make it look thinner? But thats just me, if you really want flatter hair, you don't neccessarily need to cut it, just use a good flat iron to calm it down, oh yeah and if you have too many layers, your hair will look even thicker, cause it will encourage wave.