the short answer: yes. but in my opinion it's going to be easier and more reliable to just use ethernet (wired).
I was going to paste a link to newegg's wireless adapter page, but I realized that they have a buying guide / wireless adapter info page here:
http://www.newegg.com/product/Catego...?articleId=224
give that a quick read and then post back an overview of your computer specs and your router model # to see what might be the best option for you if wireless is still the way you want to go.