Anyone who’s ever stood outside a post office on a Saturday morning, hoping the doors are open, already knows the frustration of uncertain hours. This guide pins down the exact location, confirmed opening times, and key contact details for the Dun Laoghaire post office — including Saturday service — so you can plan your visit without guesswork.

4 related posts

Main Address: 100 George’s Street Upper, Dun Laoghaire, Co. Dublin, A96 A523 ·
Phone Number: 01-2300140 ·
Opening Hours (Mon, Wed-Fri): 09:00 – 18:00 ·
Region: Dún Laoghaire–Rathdown

Quick snapshot

1Main Post Office
2Nearby Post Offices
  • Oliver Plunkett Road Post Office at 139 Oliver Plunkett Road, A96 VK60 (An Post Store Locator)
3Saturday Service
  • Dun Laoghaire: open Saturday 9am–1pm (An Post Store Locator)
  • Oliver Plunkett Road: open Saturday 9am–1pm (An Post Store Locator)
  • Closed Sundays and public holidays (An Post Store Locator)
4Lost Parcel & Contact
  • Call 01-2300140 for inquiries (An Post Store Locator)
  • Last post collection at 17:30 on weekdays (An Post Store Locator)

Five key facts about the Dun Laoghaire post office, one pattern: the branch runs consistent hours across weekdays but shortens its Saturday window considerably.

Item Details
Address 100 George’s Street Upper, Dun Laoghaire, Co. Dublin, A96 A523
Phone 01-2300140
Hours (Mon, Wed-Fri) 09:00 – 18:00
Hours (Tue) 09:30 – 18:00 (per An Post Store Locator)
Hours (Sat) 09:00 – 13:00 (per An Post Store Locator)
Hours (Sun & public holidays) Closed
Last post collection (weekdays) 17:30 (per An Post Store Locator)
Region Dún Laoghaire–Rathdown, County Dublin

The implication: if you need Saturday counter service, arrive before 1pm — and note that Tuesday opens half an hour later than other weekdays.

Where is the post office in Dun Laoghaire?

What is the address of the Dun Laoghaire post office?

The main An Post branch for the area sits at 100 George’s Street Upper, Dun Laoghaire, County Dublin, A96 A523, as confirmed by An Post’s official Store Locator, Ireland’s national postal service provider. The branch is the primary postal hub for the Dún Laoghaire–Rathdown region and also serves the Glenageary area from the same building.

Mapcarta, a community-mapping platform, lists the same address and notes the branch is wheelchair accessible (Mapcarta).

Other post offices in the area

Dun Laoghaire has a second An Post branch: Oliver Plunkett Road Post Office at 139 Oliver Plunkett Road, Dun Laoghaire, A96 VK60 (An Post Store Locator). Its phone number is 01-2802680 (Waze).

The catch: having two branches in the same town means shorter queues at Oliver Plunkett Road for those willing to walk a few extra minutes.

Does An Post open on Saturdays?

What are the opening hours of the Dun Laoghaire post office?

Yes — the Dun Laoghaire post office opens Saturdays from 09:00 to 13:00, per An Post’s Store Locator. The standard weekday hours are:

  • Monday, Wednesday, Thursday, Friday: 09:00 – 18:00
  • Tuesday: 09:30 – 18:00
  • Saturday: 09:00 – 13:00
  • Sunday and public holidays: Closed

Oliver Plunkett Road Post Office maintains similar Saturday hours, also 09:00 to 13:00 (An Post Store Locator).

What are post-working days?

Standard post-working days for An Post are Monday through Friday. Saturday is not considered a delivery working day, but counter services at branches like Dun Laoghaire remain available for collections, stamp purchases, and parcel drop-offs. The last post collection from the Dun Laoghaire branch is 17:30 weekdays (An Post Store Locator).

The trade-off

Saturday counter access exists, but delivery services don’t run. If you’re posting a parcel on Saturday, it won’t enter the system until Monday — plan ahead for time-sensitive items.

Why this matters: if you’re a commuter who can only visit outside Monday–Friday, Saturday’s 4-hour window is your only option — and both local branches offer it.

What happens if An Post lost a parcel?

How to contact the Dun Laoghaire post office

If a parcel goes missing or you need a status update, your first contact should be the Dun Laoghaire branch at 01-2300140 (An Post Store Locator). For the Oliver Plunkett Road branch, use 01-2802680 (Waze).

An Post operates a formal lost parcel claims process under its terms for registered and tracked mail. If you sent an item with tracking, retain your receipt and the tracking number. For standard post without tracking, claims are more limited. Visit An Post’s official website for the latest claims procedure.

What region is Dún Laoghaire in?

Dún Laoghaire is located in the Dún Laoghaire–Rathdown administrative area of County Dublin (Wikipedia). This is important for identifying which post office serves your address — residents of southern Dun Laoghaire may find Oliver Plunkett Road closer than the main Georges Street branch.

What to watch

Lost parcel claims require proof of postage and a tracking number. For high-value items, always use An Post’s registered post service — otherwise, compensation may be capped at standard postal rates.

The pattern: the branch handles inquiries directly, but the official An Post website remains the single source of truth for lost parcel procedure documentation.

What’s next

Confirmed facts

  • Address: 100 George’s Street Upper, Dun Laoghaire, A96 A523 (An Post)
  • Phone: 01-2300140 (An Post)
  • Saturday hours: 09:00–13:00 at both branches (An Post)
  • Last collection: 17:30 weekdays (An Post)
  • Region: Dún Laoghaire–Rathdown, Co. Dublin (Wikipedia)

What’s unclear

  • Exact holiday hours (check with branch directly as dates vary yearly)
  • Detailed lost parcel compensation tiers without tracking
  • Wheelchair accessibility status (reported by Mapcarta but not confirmed by An Post)
  • Whether Passport Express application services are available at this branch (contact branch to confirm)
  • Saturday collection times (not specified in official listings)

“Dun Laoghaire Post Office is open Saturday from 09:00 to 13:00.”

— An Post Store Locator (Ireland’s national postal authority)

“Dún Laoghaire is located in the Dún Laoghaire–Rathdown administrative area of County Dublin.”

— Wikipedia

The Dun Laoghaire post office is a reliable, well-documented branch — but its Saturday window is tight, and lost parcel procedures require proactive record-keeping. For residents juggling work and postal errands, the clear takeaway is this: visit by noon on Saturday or call ahead on Tuesday mornings (when the branch opens later). For anyone posting time-sensitive items, the choice is clear: use tracked services, keep your receipt, and aim for weekday collection before 17:30 — or risk a Monday start.

Related reading: **An Post Current Account Ireland**

Additional sources

postoffice-hours.com, anpost.com, phonebook.ie, tariffnumber.com, anpost.com, lenehans.ie, anpostinsurance.ie, ie.near-place.com, facebook.com

For a comprehensive overview of what to expect on weekends, check out our guide to Post Office Dun Laoghaire services that covers everything from parcel tracking to passport applications.

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Frequently Asked Questions

How can I track a parcel from Dun Laoghaire post office?

Use the tracking number on your An Post receipt and visit anpost.com for real-time updates.

Is there parking near the post office on Georges Street?

Street parking is available on Georges Street Upper and surrounding roads, but spaces are limited. The nearest public car park is the Royal Marine Car Park about a 5-minute walk away.

What services does the Dun Laoghaire post office offer?

The branch offers standard postal services including parcel sending and receiving, stamp sales, postal banking (An Post Money), and bill payments. For more on postal banking, see our guide to An Post Current Account Ireland.

Can I buy stamps at the Dun Laoghaire post office?

Yes, stamps are available at the counter during opening hours.

What are the holiday hours for the post office?

Holiday hours vary. The branch is closed on public holidays. Check directly at 01-2300140 or visit anpost.com for festive season schedules.

Does the post office offer passport application services?

An Post offers Passport Express application services at select branches. Contact the Dun Laoghaire branch at 01-2300140 to confirm if applications are accepted there.

How do I redirect mail from Dun Laoghaire?

Mail redirection is handled through An Post’s online service at anpost.com. You can set up a temporary or permanent redirection from the website.

Bottom line: The Dun Laoghaire post office is a standard An Post branch with confirmed Saturday morning hours — but only 4 hours, so don’t dawdle. Residents with standard weekday availability: the 9-to-6 Monday schedule works fine. Saturday visitors: arrive by 12:30 to be safe. Lost parcel claimants: keep your tracking receipt, or risk an uphill conversation.