Not a troll post. I was wondering if it is possible to get a restraining order on a woman and what would be reasonable grounds to do so?

This lady has been harassing me by showing up to my house uninvited, calling and texting from random numbers. She was a coworker, got my number and address from work, I no longer work in the same building as her as a result of her. I fear eventually she will become a danger to me.