Aloha and welcome...there is actually a seperate forum on here to see what she is but she looks like a calico to me...I will have to go and look for the exact name for forum...in the meantime please tell us more about your beautiful baby and how you got her
Besides adorable and beautiful, I couldn't say for sure, but my guess is Domestic Short Hair. Calico is not a breed, but a color pattern.
Welcome to The Cat Site! I hope you'll stick around even after your question is answered, and I hope to see lots more pictures of your lovely fur-baby. (We're all nuts about cat pictures here.)