14 Best Korean Restaurants in Diamond Bar

“I ordered from for the first time today and I must say that it was the greatest decision I made today! I ordered their Katsu sandwich and fries and it was delicious!

The bread was soft, the Katsu was crispy and full of flavor and most of all the coleslaw on the middle was sweet and tasty! The fries were the perfect side to it, they were cooked just right and they complimented the sandwich so well.

They also have a variety of drinks that can cater to everyone's tastes. Even though it ordered a coke today next time I will try the tea.

Hungry Bulldog House you have got yourself another customer that will be returning hungry for more on a different day!“

“delicious food. good selection of meats. short wait for a table. our server Ethan was great as well as all the other staff.“

“This side dish shop is the best I've ever been to. It tastes more Korean than Korea, and the quality of the kimbap in particular is sky-high. Keto kimbap without rice is new and healthy. This place has become a place I must visit every time I pass by.“

“This is a soondubu (spicy silky soft tofu soup) restaurant like BCD chain. You can order combo menu with a meat or fish entree with a version of soondubu soup. You can select the spicy level and toppings for the soup. I thought the soup is really good but the meat dishes except for the LA rib were too sweet. Ban Chan (side dishes) were just average. For Diamond Bar I think this outlet is fine. There is plenty of parking in the shopping mall lot.

Parking: Plenty

Wheelchair accessibility: It’s on the ground floor with wheelchair ramp.“

“ATOYUBU Diamond Bar is my new favorite spot! The yubu pockets are fresh, flavorful, and beautifully made every bite tastes amazing. The spicy tuna and bulgogi were standouts, and the presentation is top-notch. Staff are friendly, the space is clean and modern, and everything feels high quality. Perfect for a quick meal or takeout. Highly recommend!“

“This is the place we went to have a quick bite when we moved to Diamond Bar 8 years ago and then we found so many other places to eat and almost forgot this restaurant. Recently we visited this place again, the menu is same except price a little higher. The quality of food are same but now they gave you disposable chopsticks instead of re-usable ones in the past. Other than that, not much change, always busy but the waiting time is tolerable. I like this beef BBQ rib combo with seafood tofu soup and they are good. They don’t have steak knife but so provide a pair of scissors and a small pair of tongs so that you don’t have to eat BBQ beef with just chopsticks.“

“I genuinely want to say I like their duck because I really do. But if you plan to order takeout, I recommend getting a half duck or whole duck rather than the bento.

The first time I visited, I came with friends and we ordered a whole duck. It was excellent. That’s why I returned this time to try their bentos. I ordered a roasted duck bento and a salted duck bento. Unfortunately, both bentos were mostly filled with duck neck, and the salted duck bento even included the duck head, which was quite shocking when I first opened it. None of us eat duck head in our family, and it would’ve been nice if they at least asked, since it’s definitely not to everyone’s liking. There wasn’t much actual duck meat aside from a few pieces in the bento boxes, which was disappointing.

As I said, I really do enjoy their duck, the roasted duck was delicious. But the cuts they used for the bentos were not satisfying. I wouldn’t order the bentos again, but I would definitely come back for the whole roasted duck.“

“✨Who knew that seaweed rice balls would be the star of the meal?✨ You can expect every table to order that @yupddukdiamondbar amongst the many incredibly comforting dishes here🫶🏼

First time trying Korean comfort food or don’t know what to get? Order this lineup and thank me later:

🥚Omelette Rice
🐷Pork Cutlet
🍗Chicken feet
🍙Seaweed Rice ball
🍲Beef bulgogi stew“

“The buns here are stuff to the brim with filling with chives, glass noodles, wood ear mushrooms, and pork. Its a great quick meal to have after a long day because of how large the bun is. The frozen dumplings from here are also very generous in filling and are best boiled as soup or pan fried. The taste is meaty.“

“Seoul BBQ is a solid spot if you’re craving AYCE Korean BBQ 🔥
Great quality meats, quick refills, and that fun grill-at-your-table vibe that never gets old. Perfect for group hangs, meat lovers, and anyone who wants to eat a lot without stressing the bill.
Why it’s worth it:
🥩 All-you-can-eat meats (beef, pork, chicken)
🔥 Grill at your table = always hot & fresh
🥬 Banchan + sauces to mix & match“

“Spending time with Mr. Oh of Diamond Bageloo, who puts philosophy and soul into every bagel he makes.
For dinner, we went for the locally famous sundae soup. Wow—no off-flavors at all, just a hearty bowl filled with assorted sundae, perfectly arranged in the pot, accompanied by crisp, refreshing radish kimchi.
Seeing the walls adorned with celebrity-signed frames, it’s clear this place isn’t just any ordinary spot—you can truly feel its quality after tasting it firsthand.“

“First time here around 4:30pm on Sunday. It was really amazing and the quality is greater than all you can eat. We ordered a combo $79, and the staff was very nice and we learned a little bit Korean from her! Thank you so much for your service and we highly recommend!“

“Those little food stalls inside H Mart are the best, especially when there’s an older lady who’s been there forever—always kind, warm, and makes the food taste even better. That fish cake soup hits different, especially on a cold day. Simple, salty, comforting…total Korean soul food.“