The United States calls it the New York Strip, and Australia calls it the Concierge. What is the correct name for said cut of steak?

I believe you are talking about this steak:

These are tenderloin steaks. They had nice marbling, so I thought they were a good strip loin.

Rip steak is cut from the short loin.

In the United States, they are sometimes called New York strip steaks. That's because it sounds chic, and we have a chic town here called New York. As far as I know, there is no town in Australia called New York. At least none as chic as the one in America. In Australia, there's no reason to call tenderloin steak "New York steak." You could call them Sydney bands or Melbourne bands, but that's a bit silly. Maybe that's why they're named veal chops. This makes things even more puzzling.

In the United States, porterhouse steak is the general name for another type of steak. Porterhouse is bone-in with the tenderloin (New York strip).

This is a small hotel.

So, I'd say the vast amounts of water that divide our fair country lead us to give our steaks different names. As far as I know, English-speaking butchers everywhere correctly refer to this steak as tenderloin steak. However, there are clearly some regional differences. Don't ask what the French are called, please. Every cut of beef has a different name! New York steaks make up only half of America’s “prime steaks.” Porterhouse steak is a cut that includes both filet mignon and New York steak.

Both porterhouse steak and T-bone steak are cut from the short loin of the cow. T-bone steak gets its name from the fact that the T-bone cuts through two different steaks in this part of the cow. Both cuts are popular with steak lovers. The bone-in side is a NY strip, second, perhaps, second only to the rib eye in terms of beef quality. On the other side was the tenderloin: super lean, super tender.

Each cut is cut from the bone and served individually. You can only have porterhouse or T-bone when the fillets and fillets are on both sides of the bone. "

Only when the fish fillets are large, it is called Porterhouse (top steak). If the fish fillets are relatively small, it is called T-shaped bone.

"... said beef cubes" It's impossible to tell without a photo. In the United States, a porterhouse steak consists of a New York steak and a larger filet mignon, both steaks sandwiched in a T-bone.

In other words, In the United States, a porterhouse steak can provide two different cuts of steak

(T-bone steak and porterhouse steak are very similar, but the tenderloin portion is much smaller.)

What may be "correct" in one country may be confusing in another, but from your description, American New York steak is simply called Porterhouse in Au.