🔄 Updated 21 Jun 2026
What makes Isan freshwater fish in Roi Et so good is that the fish come fresh from local ponds and wetlands — tilapia, snakehead, giant catfish, walking catfish, barb — and they get turned into all sorts of things. Koi pla tossed with roasted rice and fresh herbs, fragrant roasted larb pla, sour-hot tom yum giant catfish, clear-broth tom som snakehead, right through to salt-grilled fish with sweet flesh. The places locals love tend to be humble Isan joints that prep fresh fish every day. We've ordered this list from spots known specifically for fish through to general Isan restaurants that do fish dishes well. Taste is personal, so we go by what reviewers consistently say.
Read This Before You Order Koi Pla — Eating Raw Fish Safely
We need to be straight with you up front. Raw koi pla and larb pla made with white-scaled freshwater fish like barb and silver fish carry a risk of liver fluke, which is a cause of the bile-duct cancer that's common in the Isan region. Doctors and public-health officials agree: eat cooked koi pla and larb pla, or blanched until done, and it's far safer. The flavor is just as savory. Plenty of good places in Roi Et already make cooked koi pla and cooked larb pla, so if you want to try the local thing with peace of mind, ordering it cooked is the better call.
Tell the Kitchen You Want It Cooked
When you order koi pla or larb pla, just tell the cook you want it cooked or blanched through. Most are happy to do it. The flavor is still savory from the roasted rice and full Isan seasoning, but you don't have to worry about parasites.
Want to taste deeper? Try a Roi Et food tour or cooking class
Half a day with a local who knows the lanes — or cooking a dish yourself — teaches you more than just eating. Book ahead on Klook or GetYourGuide.
Quick Take — Which Spot Suits You
- Want fish dishes specifically, in a waterside setting — Roi Paet Miang Pla (Rop Mueang subdistrict, just outside town)
- Into som tam with fermented fish, and want fried red tilapia too — Madame Pla Ra Saket Nakhon (in town, near Bueng Phlan Chai)
- Chasing clear-broth tom som / tom yum giant catfish — Rim Huai Nuea (outside town, riverside)
- Want proper Lao-style koi pla and larb pla — Koi Roi Et (old-school authentic Lao) and Larb Koi Roi Et
- Want a whole salt-grilled fish with sweet flesh — Song Phi Nong Pla Phao (across from Wat Map Kha)
10 Isan Freshwater Fish Spots in Roi Et That Locals Actually Go To
Roi Paet Miang Pla
The freshwater fish spot Roi Et locals think of first when they're craving fish. It's set as a pavilion in the middle of a pond, with a footbridge across, shady and relaxed like eating at a garden home. The dishes people order together are crispy fried fish miang wrapped with herbs and trimmings, snakehead paesa sour curry, and tilapia lui suan. The fish is prepped fresh day to day. Open midday to evening, closed Mondays. Good for a family or a group that wants to settle in for a while.
Madame Pla Ra Saket Nakhon
A punchy som tam spot in town, on Ratchadamnoen Road near Bueng Phlan Chai, with a clear red sign. The standout is the savory crab-and-fermented-fish som tam, plus fish dishes like fried red tilapia in fish sauce that's crisp outside and soft inside. Order it alongside soft-bone tom saep for a full meal. The room is air-conditioned and cool, open every day until late. Good if you want bold Isan flavors in town with comfortable seating.
Rim Huai Nuea
A riverside Thai-Isan restaurant outside town, open and breezy. People bring it up often for the tom som giant catfish — a mildly sour, not-spicy broth with tender catfish, great slurped hot. Beyond that there's som tam, larb, grilled fish, and side dishes to order along with it. The flavors are middle-of-the-road and easy to eat, good for bringing older relatives or coming as a group that wants both fish dishes and a riverside setting.
Koi Roi Et (Old-School Authentic Lao)
A larb-koi spot that flies the authentic-Lao flag, and people who like the original savory style come straight here. Koi pla and larb pla with fragrant roasted rice, ordered cooked however you like, eaten with fresh veg and hot sticky rice. The place is humble and the prices are friendly. Good if you want traditional Isan flavors rather than a modernized version.
Larb Koi Roi Et
A larb-koi spot in town that people in the area drop by regularly. They like that it's clean, easy on the wallet, and generous with portions. The menu covers larb, koi, tom saep, and som tam, with larb pla and koi pla you can order — just ask for it cooked. Good for a quick lunch or a no-fuss dinner.
Song Phi Nong Pla Phao (Across from Wat Map Kha)
A humble grilled-fish spot people seek out for salt-grilled fish with sweet flesh and crisp skin, dipped in jaew or seafood sauce as you like. The fish are whole and grilled over real charcoal, eaten with som tam and sticky rice for the classic combo. Good value, good if you want a big grilled fish and a laid-back sit-down.
Tam Kathoey Roi Et
A som tam spot in town that comes up a lot, pounding in many styles from crab-and-fermented-fish to fresh-prawn. The fish dish people order alongside is grilled fish with jaew dip — sweet flesh with a smoky aroma. It's a big place with both air-conditioned and outdoor zones and easy parking, good for bringing a family or a large group that wants both som tam and grilled fish in one spot.
Larb Roi Et (Across from the Train Station)
An old larb-koi spot that's been open a long time, located across from the train station so it's easy to find, and workers nearby drop by regularly. They have larb walking-catfish that people say has a deep, spice-forward flavor, ordered alongside tom saep or som tam for a full meal. Budget-friendly, good for a quick lunch or a stop before catching the train.
Tam Khrok Taek Roi Et
A bold-flavored Isan spot on the north side of town, with rice-field views and breezy, relaxed seating. Beyond the som tam and clay-pot roast chicken people order often, there's tom saep fish and larb pla to try — punchy, homestyle flavors at fair prices. Delivery is available, good if you want both fish dishes and a chill setting.
Tom Kai Ban 3 Phi Nong
A spot known for homestyle chicken soup, but locals know its larb pla pueng (sheatfish) is another standout dish. The broth is clear and naturally sweet from the real thing. It's out near Po Phan subdistrict, just outside town, open morning to evening. Great for a family lunch when you want both free-range chicken and fish dishes.
How to Order Like a Local
For koi pla and larb pla, order it cooked and ask for it saep nua (savory and bold). Don't bother specifying chili count — they'll season it to the house's balance. For tom yum or tom som fish, if you like it sour-forward say priao noi (a bit sour). And don't forget hot sticky rice with every plate — it's the star of any Isan meal.
Roi Et Freshwater Fish Dishes You Shouldn't Miss
Isan freshwater fish can be done more ways than you'd think. Once you're in Roi Et, try the full range and you'll understand why people here eat fish at nearly every meal.
- Koi pla (cooked) — fish tossed with roasted rice, chili, shallots, dill, lime, and fermented-fish sauce. Savory and fresh; ordering it cooked is safer.
- Larb pla — minced fish with fragrant roasted rice, bold-flavored, eaten with fresh veg and sticky rice. Walking catfish or snakehead are each delicious in their own way.
- Tom yum / tom som giant catfish or snakehead — a sour, hot broth with tender fish; giant catfish has just the right richness, refreshing to slurp.
- Salt-grilled fish — whole snakehead or tilapia stuffed with lemongrass and pandan, grilled in a salt crust until the skin is crisp and the flesh is sweet, dipped in jaew.
- Miang pla — crispy fried fish wrapped with full miang herbs and trimmings, drizzled with sauce — sour, sweet, and salty all in one bite.
Where Roi Et's Freshwater Fish Comes From
Roi Et has the Chi River running through it, plus wetlands and the Thung Kula Ronghai plains that were once a natural fish source. These days most of the fish restaurants use comes from fish farms and fresh markets in the province. Tilapia, red tilapia, snakehead, giant catfish, and walking catfish are the stars of fish dishes here. If you're genuinely curious about local fish, drop by the Roi Et Municipal Aquarium, right next to Bueng Phlan Chai in the city center — a freshwater fish exhibit that's a pleasant wander before you go hunting for a meal.
When to Go, What You'll Pay
Most Roi Et freshwater fish spots prep fresh fish day to day, so the dishes are best while the ingredients are fresh — midday through early evening. A place like Roi Paet Miang Pla is open midday to evening and closed Mondays, while in-town spots like Madame Pla Ra stay open late. Expect roughly ฿100–400 per head for a fish meal, depending on whether you add a whole grilled fish or a big pot of tom yum. Many spots outside town are cash only, so bring small bills to make it easy. If you've got a famous spot in mind, going early evening is the safer bet, since the best fish often sells out first.
A Vehicle Makes It Easier
Several of the best fish spots are outside town and along the river, so having a car or motorbike makes things much easier. The in-town spots like Madame Pla Ra and Tam Kathoey are an easy walk or motorbike-taxi ride away.
Plan a full eat-and-explore trip around Roi Et
See the Roi Et travel guide →