Old Siam Thai Restaurant on South Broadway has been feeding Rochester since the mid-1990s, which in this city’s restaurant lifespan qualifies as geological time.
The dining room is modest in the way that places confident about their food tend to be. Booths, low lighting, a few decorative touches from Thailand — nothing is trying to impress you before the food arrives. The staff is efficient and genuinely pleasant, and they will not pretend the medium spice level is hotter than it is. If you want real heat, say so directly and they’ll take you seriously.
Start with the crispy spring rolls or the satay. The satay peanut sauce here is worth discussing at length, but you’d have to try it first to understand why. Thick, slightly sweet, with a roasted depth that the watered-down versions at other places don’t come close to.
The pad thai is the baseline test for any Thai restaurant, and Old Siam passes it comfortably — good wok char, proper noodle texture, not drowned in sauce. But the menu rewards further investigation. The panang curry is the dish a lot of regulars quietly consider their actual order: rich coconut base, kaffir lime leaf, just enough heat to register without bullying everything else on the plate. The drunken noodles are wide, slightly chewy, and land with a satisfying basil-forward punch. The tod mun pla — Thai fish cakes — show up as an appetizer and disappear fast.
Lunch is where the value is obvious. Combination plates run roughly in the $10–$13 range and come with soup or a small salad, rice, and your entrée. For dinner, most dishes land between $14 and $20, which is fair for the portion sizes. There’s a full bar, and the Thai iced tea is made properly — strong, sweet, creamy, the color of a construction cone.
The restaurant is on South Broadway south of downtown, in a strip that sees a lot of turnover. Old Siam is not part of that turnover. It’s been there long enough to have fed the adult children of people it fed as kids. That kind of staying power in Rochester’s restaurant market isn’t an accident.
Parking is easy — there’s a lot directly in front. Reservations aren’t usually necessary on weekdays, but Friday and Saturday evenings can fill up, particularly in booths. Call ahead if you’re going with a group larger than four.
One practical note: if you’re ordering takeout, which many people do regularly, the curries travel better than the noodle dishes, which is true everywhere but especially relevant here since the portions are generous enough that you might end up taking half of it home anyway.
Rochester has a handful of Thai options now, more than it did a decade ago. Old Siam remains the standard against which the others get measured, at least by the people who’ve been eating there since the Clinton administration. Whether that loyalty is nostalgia or earned credibility is something you can decide after the panang curry.