I share our master bedroom with my studio, but most of the time I call it the Studio. I'm in studio, which means I'm quilting and don't want to be disturbed. You'd think that my kids, now that they are grown and after I quilted most of their young lives, would know better than to bother me when I'm in studio, but somehow they've decided that when I'm there, it's a great time to visit me and chat. They also know that if I don't answer them, I'm deep into quilting, so they just sit there staring at me till I acknowledge they are still alive. LOL
ETA - my husband calls it "Your studio" as well. I trained him well. ;-)