---
title: "When Do Mắm Reservations Open?"
description: "Mắm is a Vietnamese restaurant in Lower East Side, New York ($$) that takes reservations on Resy."
canonical: "https://dinnerelite.com/reservations/80206"
last-updated: 2026-08-25
---
# When Do Mắm Reservations Open?

Mắm is a Vietnamese restaurant in Lower East Side, New York ($$) that takes reservations on Resy.

On DinnerElite's booking-window estimate, tables at Mắm are claimed an average of 6 days before the reservation date. That estimate comes from the restaurant's published release window where it states one, and is modeled from price tier and neighborhood where it does not.

## Good to know before you book

Mắm ran as a six-week pop-up in 2020 before settling into a permanent Lower East Side room in late 2023, and the following it built along the way put it on the city's toughest-reservations lists (we checked in mid-July 2026). It books on Resy, so the notify list is the move when the calendar looks full. The kitchen also keeps a limited run of first-come outdoor seats for walk-ins, though they go fast, so an early arrival is a backup rather than a guarantee. It is a small room with fewer seatings than most, which is exactly why watching for cancellations pays off here.

## How to get in

Book the moment the reservation window opens on Resy, or set a free DinnerElite alert: it watches Mắm around the clock and emails you the instant a matching table opens, whether from a fresh release or a cancellation. DinnerElite sends alerts and never books automatically.

## Links

- Full guide: https://dinnerelite.com/reservations/80206
- Set a free alert for this restaurant: https://dinnerelite.com/tools/reservation-alerts
- Book directly: https://resy.com/cities/new-york-ny/venues/mam

_DinnerElite (https://dinnerelite.com) is a reservation-alert service for NYC's hardest-to-book restaurants. This document mirrors the page at https://dinnerelite.com/reservations/80206 for AI and plain-text readers._