STK Steakhouse - Oak Brook
Oak Brook, IL · Steakhouse
Tier 3 · Menu claim only What the tiers mean
This listing's current published materials advertise Wagyu, but the offering does not meet our full verification standard for provenance. It carries no authenticity badge; undisclosed details remain explicitly unverified.
Why it's listed
The Oak Brook branch of the STK group, at 1225 W 22nd St. Its own menu runs a Wagyu Selection of Australian flat iron, Japanese A5 strip and Japanese A5 filet, and a separate Wagyu Selections list naming an A5 Kagoshima eye of ribeye and a Masami Ranch California strip. Wagyu also turns up as A5 Japanese potstickers, a beef slider, an A5 fried rice and a signature butter. The same block appears on every STK menu, so it says nothing about this kitchen in particular.
Wagyu on the menu
- Japanese
- Brand / Prefecture
- Kagoshima
- Grade
- A5
- Producer
- Not listed
- Japanese
- Brand / Prefecture
- Not listed
- Grade
- A5
- Producer
- Not listed
- Australian
- Brand / Prefecture
- Not listed
- Grade
- Not listed
- Producer
- Not listed
- American
- Brand / Prefecture
- Not listed
- Grade
- Not listed
- Producer
- Masami Ranch
| Origin | Brand / Prefecture | Grade | Producer |
|---|---|---|---|
| Japanese | Kagoshima | A5 | Not listed |
| Japanese | Not listed | A5 | Not listed |
| Australian | Not listed | Not listed | Not listed |
| American | Not listed | Not listed | Masami Ranch |
Cuts named on the Wagyu menu
Read from this venue’s quoted evidence, so a listed cut may not be on tonight. What these cuts are
Sourced from
Buy it online
Evidence on file
“Wagyu Selection* Australian Flat Iron 8oz Japanese A5 Strip Recommend 4-5oz Japanese A5 Filet Recommend 4-5oz Surf & Turf* Filet 6oz & 3 Grilled Prawns Filet 6oz & Lo”
stksteakhouse.com “A5 Japanese Wagyu Potstickers* wagyu beef & pork - sweet soy and ginger sauce - spring onions - sesame seeds Crispy Cal”
stksteakhouse.com “1225 W 22nd St, Oak Brook, IL 60523”
stksteakhouse.com
Quoted from the venue's own menu or site. A Wagyu claim on a menu is not the same as documented provenance.
Something wrong with this restaurant? Tell us
Common questions
- Does STK Steakhouse - Oak Brook serve real Wagyu?
- Its own current menu advertises Wagyu, and that claim was read directly on August 20, 2026. What the menu does not do is say which Wagyu: no prefecture, grade, breed status or producer is published, so the sourcing cannot be checked from outside. That is a gap in what is written down rather than a suggestion that anything is wrong with the beef, and plenty of kitchens buy carefully without printing the details.
- What kind of Wagyu does STK Steakhouse - Oak Brook serve?
- Its menu discloses Kagoshima A5, A5 Japanese, Australian and Masami Ranch. Each of those is taken from the venue's own current materials rather than from a review or a listing site, and the evidence behind it is quoted further down this page.
- Why is STK Steakhouse - Oak Brook listed without a Wagyu badge?
- Because a badge here means the sourcing was checked, not that the food is good. This listing is published because the venue genuinely advertises Wagyu on its own current material, and it carries no badge because that material does not say which Wagyu. If the venue publishes the prefecture, grade, breed status or producer, the listing can move.