If you mean rotation of the forearm, then jabs and crosses in boxing. Most throwing uses IR.
Golf, of course. The IR when using the 7 iron is almost exactly the same as pitching other than the hand faces 3B at 9 rather than up at 9.
I think the right arm (for RH pitcher), hips, core, and legs have so many similarities to golf swing when both are done properly. The biggest difference is those motions happen in the middle of launching forward in pitching, which requires lot more athleticism.
Also the ability to slightly modify the release/contact to created spin and thus shape, while being accurate and powerful. If they didn't also hit I think most pitchers would become very good golfers later in life. But probably hard to get rid of the softball swing habits.