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Join us and discover why we’re a favorite destination for lovers of Thai cuisine around.
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Discover the flavors of Thailand at Diho Siam. Order online, dine in, or pick up - however you choose, we're here to make your meal easy and enjoyable!
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What our guests are saying
Great food, I got pad thai (yummy) it was delicious wife had the chop suey and we also got tempura veggies with wonton soup. Will be coming when we are in the area. love it that much.

Chuy L.
This place is amazing! The food was super fresh, hot off the pan and delicious. Service was exceptional, prices were great, and restaurant was clean. Literally couldn't ask for anything better.

Alisha B.
One of the best Thai restaurants I’ve ever been! The cuisine here taste heavenly, with the greatest waitress they are very nice and they do their job absolutely professional. Ba Mee Haeng taste very delicious, Tom kha soup also very tasty. Pad Thai here are fine, we also got a gift from them 2 very delicious Thai tea. Absolutely earn 5 star !!! Lifetime experiment !!!

Le Q.
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Frequently Asked Questions
What are you known for?
We are known for Soup, Thai Salad, Pot Stickers, Wontons, Fried Rice, Kung Pao Chicken, Shrimp, Egg Rolls, Pineapple Fried Rice, Thai, Pad Thai, Mongolian Beef, Satay, Tom Yum Noodle, Fish, Red Curry, Rice Noodles, Noodles, Hot Pot, Asian Food, Curry, Chow Mein, Egg Noodles, Oysters, Spicy Noodles, Chop Suey, Noodle Restaurant, Calamari, Papaya Salad, Yellow Curry, Glass Noodles, Salmon, Vegetarian Food, Oyster, Trout, Thai Fried Rice, Lobster, Wonton Soup, Chinese Food, Drunken Noodles, Seafood, Chicken Salad, Lo Mein, and Iced Coffee
What areas do you serve?
We serve the following areas: Mission Viejo, Laguna Hills, Galivan, Lake Forest, Aliso Viejo, Irvine, Ladera Ranch, Las Flores, Laguna Woods, Laguna Niguel, Rancho Santa Margarita, Coto De Caza, Laguna Beach, Top of the World, San Juan Capistrano, Trabuco Canyon, East Irvine, Rancho Mission Viejo, Upper Aliso, and Kathryn.