What are the opening hours?

Monday 10am - 11pm Tuesday 10am - 11pm Wednesday 10am - 11pm Thursday 10am - 11pm Friday 10am - 12am Saturday 9am - 12am Sunday 9am - 10pm

All Bar One

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Bottomless brunch, cocktails, tapas & daily deals next to the harbour at Gunwharf Quays 🍸
(3555)

Perched beside the sparkling waters of Gunwharf Quays Marina, All Bar One Portsmouth pairs stylish city energy with coastal calm, offering skyline-to-sea views made for the camera roll. From brunch to nightcap, guests can expect vibrant plates, crafted cocktails, and a buzzy social vibe—ideal for relaxed catch-ups, after-work drinks, or a big night out in Portsmouth’s most scenic spot.

03/11/2026

A little something to cheers to...🥂

We’re giving away 6 bottles of Rosé Prosecco – that’s 6 lucky winners! 👀

Want to be in with a chance of winning?

Here’s how to enter:
🍾Like this post
🍾Comment below tagging the friends you’d share your bottle with
🍾Follow &

Terms & Conditions:
A winner will be selected at random from all eligible entries after the competition closes on Tuesday 10th November at 23:59. Winners will be contacted via DM from on Wednesday 11th November. Each winner will receive one bottle of @ mionettoprosecco_uk Rosé Prosecco to enjoy at any All Bar One venue, excluding airports. Prizes are non-transferable and cannot be exchanged for cash or any other alternative. Open to UK residents aged 18 or over. Employees of All Bar One and any associated companies are not eligible to enter. Entry is via Instagram only. All entries must follow the competition instructions outlined in this post. This competition is in no way sponsored, endorsed, administered by or associated with Instagram.

Please drink responsibly!

01/11/2026

Consider this our festive hard launch🤭🎄✨

Cocktails, catch-ups and a little Christmas magic… we’re ready when you are. 🥂

30/10/2026

Christmas is fast approaching🎄❤️

If you need a work party booked in, we are the place to be !!
We have DJs and Live Music to bring the party vibes and keep the night alive. However, we're booking up quick so get your enquiries in now !!

Food and Drinks packages are all available in our bio, and we are happy to get you booked in for the Christmas party you won't forget❤️🎄

28/10/2026

Looking for plans for Halloween 🕷️🕸️

We have our monthly Saxxy Bottomless Brunch for you to enjoy ‼️ For just £43pp, be part of unlimited cocktails and prosecco, paired with one of our amazing main meals!

Our saxophonist will play all your favourites as well as a few spooky extras 🕷️🕸️

Book now !

28/10/2026

Forget the spooky season spirits… we’ve got cocktails on our mind 👻🍸

Join us for Saxy Bottomless Brunch this Saturday, with great drinks, live sax and a Halloween twist! 🎃

Check your local bar for pricing and availability.

25/10/2026

Our Winter Menu is here ❤️❄️

Enjoy our new and improved Miso Salmon as part of your Bottomless Friday deal. For just £48pp, you can enjoy a Bottomless Brunch on a Friday Night, with our live signer bringing the atmosphere ⭐️

Book now for the perfect way to kickstart your weekend ‼️

21/10/2026

We are booking up FAST !!⭐️

If you're looking to book a Festive Party here at All Bar One Portsmouth, you may want to do it quickly!🎄
We are offering SO many good events this year, and we're so excited to treat you like royalty.
- 3 course set meal
- Buffet and party events
- Festing menu for family style food

Planning Christmas can be stressful, so place an enquiry through and Belle our Festive Booking Manager will take care of the rest❤️

20/10/2026

Introducing our brand new THROWBACK bottomless brunch 💿🎶🍸🪩

Think non-stop 90s & 00s anthems, exclusive new cocktails, DJ, merch…and all the nostalgia you didn’t know you needed😉

Round up your people and book your spot now✨

Check with your local bar for dates, pricing and availability.

First event: Saturday 7th November🍸📅

Only at selected locations:

📍 Leicester Square
📍 Guildford
📍 Birmingham Brindley Place
📍 Leeds
📍 Worcester
📍 Manchester
📍 Liverpool
📍 Portsmouth
📍 Southampton

Book your spot now!🎵

19/10/2026

Halloween Saxxy 🕷️🕸️

It’s that time of the moment again ! Saxxy time, and we have a Halloween competition for you. Whoever comes with the best fancy dress , you will reserve a free saxxy brunch for yourself ✨‼️

Now that sounds amazing to me, book now ❤️

18/10/2026

HAPPY SUNDAY…🍴

IT’S HERE! Introducing the All Bar One style Sunday roast, made for sharing. 🥂

Choose your large plate each, then tuck into a feast of crispy potatoes, maple-roasted carrots, Yorkshire puddings, pigs in blankets, buttered greens and BOTTOMLESS GRAVY. 🤤

From £22.50pp* | Minimum 2 people

Your Sunday plans just got a whole lot tastier.✨😋

*Please check with your local All Bar One for pricing and availability.

18/10/2026

Sunday Roast is Here ‼️‼️

For just £24pp, you can enjoy one Large plate and ALL the trimmings. This warm hearty food is needed in this weather, so try our new garlic butter roasted chicken thighs! Paired with our new drinks menu coming soon, this deal will be a fan favourite

Book now , or pop in on a Sunday and join us ❤️

17/10/2026

UPCOMING EVENTS ‼️⭐️

We have numerous exciting upcoming events here at All Bar One Portsmouth !

We have the launch of our BRAND NEW Sunday Roast, running every week where you and your family can get together!

Mumma Brunch is now SOLD OUT for the 10am slot for the festive meet up, so Jade is running a 2nd event at 1:30pm !!

All Bar One is the place to be ❤️

16/10/2026

Great South Run - 18th October ✨⭐️

Good luck to anyone running the Great South Run this Sunday ! As a reward, we’re giving every runner with a medal a free Jubel or glass of Prosecco. Just pop up to the bar to receive your cool down drink.

This Sunday is also the launch of our brand new Sunday Roast, so if you’re in need of some refuelling after the race, this is the perfect deal for you ❤️

13/10/2026

BIG NEWS…👀🚨
Sunday roasts have arrived at All Bar One!

Our chefs have been busy working on something special, and we can finally share it with you🤩

INTRODUCING… the All Bar One style Sunday roast - the ultimate Sunday feast, made for sharing🍴

Your new Sunday plans start THIS WEEKEND

Book your table via the link in our bio!

10/10/2026

A little bit spooky, a lot of sax-y 🖤🎷

Halloween plans? We’ve got you covered!

Join us Saturday 31st October for a Halloween Saxy Bottomless Brunch, with bottomless drinks, live sax and all the right vibes. 👻🥂

Book your spot before it’s too late… 🕸️

Selected bars only. Link in bio

05/10/2026

Run don’t walk!🏃‍♀️😉

Pssst… you can get 50% OFF small plates, large plates & main until Friday 9 October! 👀

PLUS, grab a complimentary Kraken & mixer when you buy another, available throughout October.✨

Download our All Bar One app and keep an eye out for our future offers & complimentary drinks.

01/10/2026

Dinner plans? Consider them sorted..✨🍽️

Two small plates, one large, two sides - all for sharing between two from £34*

Sunday–Friday from 4pm.😋

29/09/2026

It’s Tapas Tuesday…🍽️

Enjoy 4 small plates + 2 classic cocktails or a bottle of house w**e from £32* every Tuesday!🥂

The midweek occasion worth making plans for...

Book your table via the link in bio.📲

**e

01/09/2026

A little something from us this September!🌿✨

Head to the All Bar One app to redeem your complimentary Everleaf Forest Mojito or Mountain Pornstar, available til the end of the month!

The difficult part? Choosing which one. 🍸

*T&Cs apply.
Dine-in only. 1st–30th September. Excludes airport locations and All Bar One O2. One redemption per voucher. Subject to availability.

28/08/2026

Friday’s looking spritz-y🍋‍🟩✨

Aperol, Sarti, Limoncello or Hugo - all £8, all day long!

Address

Unit RO5A, Gunwharf Quays
Portsmouth
PO13TA

Opening Hours

Monday	10am - 11pm
Tuesday	10am - 11pm
Wednesday	10am - 11pm
Thursday	10am - 11pm
Friday	10am - 12am
Saturday	9am - 12am
Sunday	9am - 10pm

Website

https://www.allbarone.co.uk/national-search/south-east/all-bar-one-portsmouth

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