Hey Katrina
There is no literal translation of your name in Arabic. What we try to do is to spell out the name using Arabic letters which makes it sound the same. But your name is fairly common, so there will be no problem at all when you say it. Unfortunately writing it down here only gives me the option in the usage of a small font, which may look a bit complicated. My advice would be to copy it and paste it in a word document, then resizing it...making it bigger so you can spot the little details in it.
It is written just like Ashehri said:
كاترينا