Can I use a 3 pole breaker for 2 pole cicuit

I don't know, can you, GJ? :) You are starting the question backwards.

Tell me what you have, first. For example, do you have a standard 120 VAC breaker, one pole is feeding the supply side (usually a Black conductor), the other side conductor (White) going to the Neutral Bus in the panel box.

Or do you have One Dual Pole Single Throw breaker with (2) 120 VAC supply conductors and a Neutral and Ground to their respective bus bars?

You need to describe what you have and what you are trying to do, please.

In theory, you could if you had a 3 phase panel. If you have single phase all bets are of, I believe.