J San Ramen Fullerton
Welcome! Come, taste, and enjoy!
About This Awesome Japanese Restaurant
Welcome to J San Ramen Fullerton! It is a Japanese restaurant and your go-to spot for authentic Japanese flavors, located at 1309 S Harbor Blvd, Fullerton, CA 92832.
We are renowned for crafting ramen that’s a masterpiece, and offer a cozy, inviting atmosphere—perfect for satisfying taste buds whether you’re craving warmth on a chilly day or exploring Japanese cuisine.
Our standout offerings include our signature Tonkotsu Spicy Miso Ramen a customer favorite with rich, savory broth and tender chashu, plus diverse options like Japanese Katsu Curry and crispy Kara Age appetizers.
We invite you to stop by J San Ramen Fullerton, savor our authentic Japanese dishes, and let us take you on a delicious journey through Japan!

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Our Review!
⭐⭐⭐⭐⭐
“Delightful, delicious, and surprising. They provide table service if you’re eating in, and then they cook it up fresh. The cook even helped me order since I was unfamiliar with a lot of the choices. One of the best meals I’ve had in a long time. Well done!”
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“Loved this ramen place! My friends and I make it a must-stop whenever we’re on a business trip to Southern California. The food is great and the owner is super sweet!”
⭐⭐⭐⭐⭐
“This place is bomb. I’m a broth guy and I liked the Black Tonkotsu bowl, got it medium spicy too because I like it. Flavorful with good noodles too.
They also have the best spicy edamame, other places don’t do it like they do! 👌🏽”
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Hours
Mon: 11 AM - 3 PM | 4:30 PM - 9:30 PM
Tue - Sun: 11 AM - 10 PM