A round steak is a steak from the round section of a cow, known as a rump roast in the United States and Canada. A round steak is the eye round, bottom round, and top round still connected together.
This cut has very little fat and tends to be a bit tough. Due to the lack of fat and marbling I would not suggest this steak for grilling, it will dry out to quickly. It is best when cooked in the oven slowly with moist heat including braising to tenderize the meat and keep the cut moist. Round Eye is often sliced thin after it is cooked.
Round steak is also used to make a type of ground beef called ground round.