The sirloin steak's beef steak cut from the lower portion of the ribs, continuing off the tenderloin from which filet mignon's cut. The sirloin's actually divided into several types of steak. The top sirloin's the most prized of these. The bottom sirloin's less tender, much larger, and's typically what's offered when one just buys sirloin steaks instead of steaks specifically marked top sirloin. The bottom sirloin in turn connects to the sirloin tip roast, which's generally considered to be a go… (More on Sirloin)