Featured
Welcome to 𝒟𝒾𝒽𝑜 𝒮𝒾𝒶𝓂! 🛕
We're All About Authentic Flavors
Convenience Made Simple
Simply Grab it and Go!
Featuring
Delivery
Takeout
Dine In
Visit Us Today!
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!
Order From Our Website
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.
𝓞𝓾𝓻 𝓖𝓪𝓵𝓵𝓮𝓻𝔂
Join us and discover why we’re a favorite destination for lovers of Thai cuisine around.
Diho Siam Rewards
Frequently Asked Questions
What are you known for?
We are known for Seafood, Pad Thai, Shrimp, Salmon, Chicken Salad, Lobster, Oyster, Iced Coffee, Spicy Noodles, Fish, Mongolian Beef, Asian Food, Kung Pao Chicken, Oysters, Rice Noodles, Noodles, Hot Pot, Pineapple Fried Rice, Pot Stickers, Yellow Curry, Calamari, Papaya Salad, Vegetarian Food, Soup, Wontons, Lo Mein, Chop Suey, Drunken Noodles, Curry, Wonton Soup, Egg Rolls, Trout, Chinese Food, Chow Mein, Satay, Tom Yum Noodle, Egg Noodles, Thai Salad, Thai, Thai Fried Rice, Fried Rice, Glass Noodles, Noodle Restaurant, and Red Curry
What areas do you serve?
We serve the following areas: Irvine, Laguna Woods, Lake Forest, Mission Viejo, Laguna Hills, Aliso Viejo, East Irvine, Galivan, Kathryn, Laguna Niguel, Laguna Beach, Rancho Santa Margarita, Top of the World, Las Flores, Frances, Como, Ladera Ranch, Upper Aliso, Emerald Bay, and Modjeska.