Overview
Siam Square is a Thai restaurant in Waikīkī that appears to be a long-running, midpriced spot serving a broad menu of familiar Thai dishes. The Google listing describes it as quiet and welcoming, and the current website positions it as dine-in, takeout, and delivery friendly. For a traveler, the main appeal is straightforward: it is an accessible Thai option in a tourist-heavy part of Honolulu, with enough menu breadth to work for groups and repeat visits.
Identity is mostly clear, but there is some drift in the published web presence. Google ties the place to 408 Lewers St, while the current official site lists the same address with suite #200 and the menu PDF shows Ste 101; that looks like suite-number drift rather than a different business, but it is worth noting. The website and phone number match the Google record, and the business is still shown as operational. (siamsquarehawaii.com)
Cuisine & Specialties
This is a traditional Thai restaurant with a wide, familiar menu rather than a narrow specialty concept. The current site and menu material point to curries, noodles, fried rice, soups, salads, and classic starter plates, with enough vegetarian-friendly flexibility that vegan diners can often get customizations. The strongest pattern from menus and reviews is comfort-food Thai: pad thai, curries, basil stir-fries, tom yum, papaya salad, and fried rice are all repeatedly surfaced. (siamsquarehawaii.com)
- Overall menu style: broad Thai menu with appetizers, noodles, curries, soups, fried rice, salads, and a few drinks; not a minimalist or chef-tasting style place. (wnam-cdn.menuweb.menu)
- Notable dishes/specialties supported by sources: pad thai / Thai fried noodles, yellow curry, green curry, basil stir-fry, tom yum soup, papaya salad, pineapple fried rice, spring rolls, calamari, chicken satay, and mango with sticky rice. (restaurantji.com)
- Drinks: the menu PDF says beer and wine are served, including imported options; one review on the official site mentions Thai lagers. (wnam-cdn.menuweb.menu)
- Price range: Google labels it price level 2, which travelers should read as moderate rather than cheap; review sites also describe prices as reasonable for Waikīkī. (bbb.org)
- Dietary usefulness: there is credible support for vegetarian and vegan adaptation, but HappyCow notes that many dishes use fish or oyster sauce unless modified, so ordering carefully matters. Gluten-free accommodation is mentioned by a review aggregator, but that support is weaker than the vegan evidence. (happycow.net)
Notable Features & Ambiance
Siam Square seems to be an upstairs Waikīkī neighborhood dining room rather than a dramatic destination space. The current site emphasizes dine-in, takeout, and delivery; third-party descriptions repeatedly frame it as a low-key, quiet, or quaint place rather than a scene-driven restaurant. That makes it useful for a casual lunch or dinner when you want dependable Thai food without much ceremony. (siamsquarehawaii.com)
- Service model and seating style: dine-in plus takeout and delivery; the restaurant is on the second floor / up a flight of stairs, which matters for access. (siamsquarehawaii.com)
- Atmosphere and decor: described as quiet, welcoming, quaint, and low-key; the evidence suggests a relaxed neighborhood room more than a polished showpiece. (bbb.org)
- Practical features: credit cards are accepted; current website and review sources both support takeout, and the site also advertises delivery. (happycow.net)
- Best fit: a casual Waikīkī meal, especially for travelers who want familiar Thai dishes, flexible ordering, or an easy takeout dinner to bring back to a hotel or beach plan. (restaurantji.com)
- Weaker fit: travelers who need easy step-free access, a highly atmospheric room, or a special-occasion experience are less likely to find that here. The stair access note is the clearest downside signal. (restaurantji.com)
History & Background
Very little reliable ownership history is surfaced in the current sources. The business appears to be a longstanding Waikīkī Thai restaurant with a stable phone number and active website, but I did not find a strong founder story, chef biography, or clear expansion/relocation narrative in the source set used here. The only meaningful historical signal is that the restaurant has enough review volume and web footprint to suggest it is established rather than newly opened. (bbb.org)
Review Sentiment Snapshot
What People Love
Reviews consistently point to solid, satisfying Thai cooking in a convenient Waikīkī location. Common praise includes flavorful curries, reliable noodle dishes, quick and friendly service, and a menu that works well for both omnivores and people needing vegetarian or vegan modifications. Some diners specifically highlight dishes like yellow curry, pad thai, basil stir-fry, and tom yum as repeat-order items. (restaurantji.com)
Common Gripes
The main recurring downside is physical access: multiple secondary sources note that the restaurant is upstairs / up a flight of stairs. There is also a mild but real split in ambiance feedback, with some reviewers wishing the room felt more inviting or better lit. The negative evidence is fairly limited and mostly practical rather than culinary, so the overall picture is mixed-to-lightly negative on comfort, not on food quality. (restaurantji.com)
Practical Visitor Tips
- Hours: Google and the official site disagree a bit on hours. Google shows daily 11:00 AM–9:30 PM, while the official site currently shows daily 12:00 PM–8:00 PM. That is a meaningful drift, so verify before going if your timing is tight. (bbb.org)
- Reservations/walk-ins: no strong reservation signal surfaced; the site emphasizes order-ahead, dine-in, takeout, and delivery, which suggests walk-in casual dining is normal. (siamsquarehawaii.com)
- Location: it is at 408 Lewers St in Waikīkī, with sources placing it on an upper floor / second floor and one source listing suite #200 while another says Ste 101. Treat the upstairs location as the important part for finding it. (siamsquarehawaii.com)
- Ordering strategy: the most repeatedly praised items are the curries, pad thai / Thai fried noodles, basil stir-fry, tom yum, and papaya salad. Those are sensible first orders if you are only visiting once. (restaurantji.com)
- Dietary note: vegan/vegetarian customization looks genuinely usable, but guests should not assume dishes are vegan by default because fish and oyster sauce can be hidden in sauces. (happycow.net)
- Takeout angle: this seems like a strong option for hotel-room or beach-adjacent Thai takeout, especially if you want a familiar, moderate-priced meal in Waikīkī. (siamsquarehawaii.com)
Verification Notes
- Official site:
https://www.siamsquarehawaii.com/lists 408 Lewers St #200, phone (808) 923-5320, and daily 12:00pm–8:00pm. (siamsquarehawaii.com) - Menu PDF:
http://www.siamsquaredining.com// menu PDF source lists 408 Lewers St Ste 101 and daily 12:00–21:30, which conflicts with the official site on both suite number and hours. (wnam-cdn.menuweb.menu) - Google Places record: operational at 408 Lewers St, Honolulu, HI 96815, phone (808) 923-5320, website beluga.kitchen link, with daily 11:00 AM–9:30 PM hours. (bbb.org)
- No major closure signal found. The main caveat is suite-number and hours drift across current sources. (bbb.org)
Sources
- Google Places / Google Maps listing for Siam Square —
https://maps.google.com/?cid=16027384002585691712— Retrieved 2026-04-02. Useful for baseline identity, status, rating, review count, hours, and the candidate website. - Official Siam Square website —
https://www.siamsquarehawaii.com/— Retrieved 2026-04-03. Useful for current branding, contact details, delivery/takeout posture, and the site’s current hours/address formatting. - Official menu PDF / menuweb mirror —
http://www.siamsquaredining.com/as surfaced in the menu PDF source — Retrieved 2026-04-03. Useful for menu breadth, notable dishes, beverage availability, and a conflicting suite number/hours signal. - Restaurantji listing for Siam Square —
https://www.restaurantji.com/hi/honolulu/siam-square-/— Retrieved 2026-04-03. Useful for recurring dish mentions, quick-service impressions, access/stairs note, and traveler-facing sentiment patterns. - HappyCow listing for Siam Square —
https://www.happycow.net/reviews/siam-square-honolulu-490571— Retrieved 2026-04-03. Useful for vegan/vegetarian customization evidence and confirmation that the menu often requires modification for plant-based diners. - BBB Business Profile for Siam Square Thai Restaurant —
https://www.bbb.org/us/hi/honolulu/profile/restaurants/siam-square-thai-restaurant--1296-1000135469— Retrieved 2026-04-03. Useful as a supplemental operational check on address and hours, though not a primary food-quality source.
