5 tailors in Quy Nhon, each with the prices people actually paid, how long the order took, and the honest notes from their reviews.

Quy Nhon has around 12 tailor shops, 5 of them profiled here from what their customers wrote. Prices depend mostly on the fabric you choose, so ask for the total with fabric included before measurements. The local strengths are dresses, alterations, linen, trousers and blouses.
Nguyễn Thái Học is the tailoring street — 1 shop line it — with more clustered on Trần Thị Kỷ (1), Lô LK2-25 (1), Lê Thánh Tôn (1) and Trần Hưng Đạo (1). Everything is within a short walk, so it's easy to visit two or three shops, feel the fabrics and compare quotes in one afternoon before ordering.
Read the recent low reviews before the star rating: a 4.8 with a fresh run of sizing complaints tells you more than the number. Agree the full price and the payment split before anyone takes measurements, order on your first day in town, and say what feels off at the fitting — that's where a good shop earns its reputation. The busiest names in Quy Nhon are Mai Tailor Shop, TIỆM MAY CỦA MẸ (Nhà may MỸ DUNG) and Nhà May Kim Nga; the smaller shops often win on attention.
Customers in Quy Nhon rarely put a number in their reviews, so treat any figure you are quoted as the starting point rather than the going rate. The fabric decides most of the bill, far more than the shop you pick, so ask for the total with the fabric you actually want before anyone reaches for the tape measure. Prices across Vietnam, city by city puts these numbers in context.
One of the 5 shops profiled in Quy Nhon routinely delivers in 24 to 48 hours, so the safe plan is two days: measurements and fabric on day one, a fitting the next morning, small adjustments and pickup that afternoon. Add a day for a three-piece, a wedding outfit or hand embroidery, and another if you want a second fitting.
Hoi An has hundreds of tailors in one walkable old town and turns most orders around in two or three days, and it is where the trade learned to work with travelers. Quy Nhon has 5 profiled shops, fewer options to compare in an afternoon though one of them still delivers in 24–48 hours. If Hoi An is on your route and you have two spare days there, order there. If it is not, or you are already here and the fit matters more than the choice of fabrics, the shops below do the same work — read the recent low reviews first and agree the price in writing. See what Hoi An offers.
Around 12 tailor shops, from one-room family workshops to big showrooms. 5 of them are profiled here from what their customers wrote, and more are added regularly.
Nguyễn Thái Học has the biggest concentration (1 shop), followed by Trần Thị Kỷ, Lô LK2-25 and Lê Thánh Tôn. They're all within walking distance of each other.
Hoi An has far more shops in walking distance and the fastest turnarounds in the country, so if it is on your route it is the easier choice. Quy Nhon works when you are already here: 5 profiled shops, fewer options to compare but the same craft.
Yes, and it is the most reliable way to get the fit you want: bring the garment that already fits you, or a clear photo of the cut. Reviews across these shops rate copying highly, more highly than describing a design from scratch.
Plan two to three days: first fitting within 24 hours, adjustments the next day. 1 of the shops here routinely finish standard orders in 24–48 hours.