Both terms are commonly used, but there is a slight difference in their origin:

Zip Tie: This term is more popular in casual conversation. It's often used because of the "zip" sound made when the tie is tightened, similar to a zipper.

Cable Tie: This is the more technical or formal term. It specifically refers to the tool used to bundle cables together.

So, both are correct, but "cable tie" is often preferred in professional or technical contexts, while "zip tie" is used more broadly in everyday language.