Yes, most programs require transcripts from study abroad since they do go towards your credits earned. Most schools will let you upload scanned copies of all transcripts including those from study abroad amd will require hard copy official transcripts once you get in. I had one school that didn't require a transcript and simply had me fill in relevant info on the application, but all others wanted at least a scanned version. Just to be safe, having a scanned version of all your official transcripts on hand helps. Some schools don't care if the copies are unofficial (web printouts) some want official (seal and everything) so might as well have the latter ready.
Getting my study abroad transcript was by far the most tedious and annoying part of my application.