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O'Neill's St Mary Street — Restaurant in Wales

Name
O'Neill's St Mary Street
Description
Relaxed chain pub with big-screen sport, live music and Irish-influenced food and drink menus.
Nearby attractions
Principality Stadium
Westgate St, Cardiff CF10 1NS, United Kingdom
Cardiff Central Library
The Hayes, Cardiff CF10 1FL, United Kingdom
Museum of Cardiff
The Old Library, The Hayes, St Davids Centre, Cardiff CF10 1BH, United Kingdom
Utilita Arena Cardiff
Mary Ann St, Cardiff CF10 2EQ, United Kingdom
Cardiff Castle
Castle St, Cardiff CF10 3RB, United Kingdom
St John The Baptist City Parish Church
St John St, Cardiff CF10 1GJ, United Kingdom
Firing Line Cardiff Castle Museum of the Welsh Soldier
Castle St, Cardiff CF10 3RB, United Kingdom
St David's Metropolitan Cathedral
38 Charles St, St Davids Centre, Cardiff CF10 2SF, United Kingdom
Animal Wall
11 Castle St, Cardiff CF10 1BJ, United Kingdom
National Museum Cardiff
Cardiff CF10 3NP, United Kingdom
Nearby restaurants
The Prince of Wales - JD Wetherspoon
81–83 St Mary St, Cardiff CF10 1FA, United Kingdom
Spitfire Barbecue Cardiff
39-41 St Mary St, Cardiff CF10 1AD, United Kingdom
Slug & Lettuce - St Mary St Cardiff
84 St Mary St, Cardiff CF10 1AT, United Kingdom
Brewhouse
49 St Mary St, Cardiff CF10 1AD, United Kingdom
Pieminister - Cardiff
35 St Mary St, Cardiff CF10 1AD, United Kingdom
The Philharmonic
76-77 St Mary St, Cardiff CF10 1FA, United Kingdom
Bill's Cardiff Central Restaurant
27-39 Wyndham Arcade, Mill Ln, Cardiff CF10 1FH, United Kingdom
Five Guys Burgers and Fries Cardiff City Centre
Unit 9a, The Old Brewery Quarter, Off Caroline St, St Mary St, Cardiff CF10 1AD, United Kingdom
Turtle Bay Cardiff
114-116 St Mary St, Cardiff CF10 1DY, United Kingdom
Las Iguanas - Cardiff
8 Mill Ln, Cardiff CF10 1FL, United Kingdom
Nearby hotels
Royal Hotel Cardiff
88 St Mary St, Cardiff CF10 1DW, United Kingdom
The Parkgate Hotel
Westgate St, Cardiff CF10 1DA, United Kingdom
Travelodge Cardiff Central
Imperial Gate, St Mary St, Cardiff CF10 1FA, United Kingdom
BunkHouse Hostel & DnB Bar
93 St Mary St, Cardiff CF10 1DX, United Kingdom
Cardiff Sandringham Hotel
21 St Mary St, Cardiff CF10 1PL, United Kingdom
Cardiff Marriott Hotel
Mill Ln, Cardiff CF10 1EZ, United Kingdom
Radisson Blu Hotel, Cardiff
Meridian Gate, Bute Terrace, Cardiff CF10 2FL, United Kingdom
ML Lodge
108 St Mary St, Cardiff CF10 1DX, United Kingdom
Park Inn by Radisson Cardiff City Centre
Mary Ann St, Cardiff CF10 2JH, United Kingdom
Meridian Gate, Cardiff
Meridian Gate, Bute Terrace, Cardiff CF10 2FL, United Kingdom
Related posts
Keywords
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O'Neill's St Mary Street things to do, attractions, restaurants, events info and trip planning
O'Neill's St Mary Street
United KingdomWalesO'Neill's St Mary Street

Basic Info

O'Neill's St Mary Street

85-87 St Mary St, Cardiff CF10 1DW, United Kingdom
4.3(1.4K)
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Ratings & Description

Info

Relaxed chain pub with big-screen sport, live music and Irish-influenced food and drink menus.

attractions: Principality Stadium, Cardiff Central Library, Museum of Cardiff, Utilita Arena Cardiff, Cardiff Castle, St John The Baptist City Parish Church, Firing Line Cardiff Castle Museum of the Welsh Soldier, St David's Metropolitan Cathedral, Animal Wall, National Museum Cardiff, restaurants: The Prince of Wales - JD Wetherspoon, Spitfire Barbecue Cardiff, Slug & Lettuce - St Mary St Cardiff, Brewhouse, Pieminister - Cardiff, The Philharmonic, Bill's Cardiff Central Restaurant, Five Guys Burgers and Fries Cardiff City Centre, Turtle Bay Cardiff, Las Iguanas - Cardiff
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Phone
+44 29 2066 4103
Website
oneills.co.uk

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Featured dishes

View full menu
8oz Rump Steak
Chargrilled aged prime steak, seasoned with black pepper and salt, served with grilled tomato, flat mushroom, garden peas, seasoned fries and your choice of sauce. Double up to 16oz (1338 kcal). Choose a sauce: irish-whiskey sauce (+67 kcal), peppercorn sauce (+82 kcal), bbq sauce (+54 kcal) (930 kcal)
Classic Mixed Grill
Small rump steak, half a gammon steak, chicken fillet, irish pork & leek sausage and a fried free-range egg. Served with seasoned fries, garden peas, flat mushroom and a grilled tomato (1257 kcal)
Mega Mixed Grill
8oz* rump steak, 7oz* gammon steak, two irish pork & leek sausages and a chicken fillet, all grilled to perfection. Served with a fried free-range egg, seasoned fries, garden peas, flat mushroom and a grilled tomato (1732 kcal)
7oz* Gammon Steak
Served with a fried free-range egg, grilled fresh pineapple, garden peas and seasoned fries. Double up to 14oz (1024 kcal) (829 kcal)
Crispy King Prawns
Add crispy king prawns to your steak to make it a surf & turf (176 kcal)

Reviews

Nearby attractions of O'Neill's St Mary Street

Principality Stadium

Cardiff Central Library

Museum of Cardiff

Utilita Arena Cardiff

Cardiff Castle

St John The Baptist City Parish Church

Firing Line Cardiff Castle Museum of the Welsh Soldier

St David's Metropolitan Cathedral

Animal Wall

National Museum Cardiff

Principality Stadium

Principality Stadium

4.7

(6.4K)

Open 24 hours
Click for details
Cardiff Central Library

Cardiff Central Library

4.4

(177)

Open until 5:00 PM
Click for details
Museum of Cardiff

Museum of Cardiff

4.4

(416)

Open 24 hours
Click for details
Utilita Arena Cardiff

Utilita Arena Cardiff

4.4

(4.5K)

Open 24 hours
Click for details

Things to do nearby

Candlelight: Hans Zimmers Best Works
Candlelight: Hans Zimmers Best Works
Sun, Dec 14 • 9:00 PM
Charles Street, Cardiff, CF10 2SF
View details
Hike Brecon Beacons waterfalls from Cardiff
Hike Brecon Beacons waterfalls from Cardiff
Fri, Dec 12 • 8:30 AM
Cardiff, CF10, United Kingdom
View details
Learn to paint like Bob Ross
Learn to paint like Bob Ross
Sat, Dec 13 • 11:00 AM
Cardiff, CF10 1FL, United Kingdom
View details

Nearby restaurants of O'Neill's St Mary Street

The Prince of Wales - JD Wetherspoon

Spitfire Barbecue Cardiff

Slug & Lettuce - St Mary St Cardiff

Brewhouse

Pieminister - Cardiff

The Philharmonic

Bill's Cardiff Central Restaurant

Five Guys Burgers and Fries Cardiff City Centre

Turtle Bay Cardiff

Las Iguanas - Cardiff

The Prince of Wales - JD Wetherspoon

The Prince of Wales - JD Wetherspoon

4.1

(3.1K)

Click for details
Spitfire Barbecue Cardiff

Spitfire Barbecue Cardiff

4.2

(46)

Click for details
Slug & Lettuce - St Mary St Cardiff

Slug & Lettuce - St Mary St Cardiff

4.4

(727)

Click for details
Brewhouse

Brewhouse

4.3

(1.1K)

Click for details
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Posts

Kayleigh BeardKayleigh Beard
First time in Cardiff yesterday and whilst waiting to go to the arena, I stumbled across this bar to kill some time, I have to say what a lovely experience I had in there. It was a very lovely setting and the live entertainment they had was brilliant in my opinion, It definatly started my day off in a brilliant way. If ever I'm in Cardiff again I will definatly be going back to O'Neil's. Hopefully the same band will be playing even though I have no idea who they were 🤣 Thank you for a great experience
jamie baterjamie bater
Very little respect shown to the Guinness... it wasn't poured properly which was disappointing for an Irish bar. Drink prices were very expensive... double the price of the same drinks compared to the Prince of Wales pub opposite, the tables were sticky and not cleaned, the toilets weren't the best, and the service wasn't particularly good (borderline poor/slow)... so I'm struggling to understand why anyone would frequent or return.
Leon BLeon B
A fantastic venue with a beautifully decorated interior that creates a warm and lively atmosphere. The staff are genuinely friendly and welcoming, which made the experience even better. We caught the drag show and had an absolute blast — full of energy, humour, and great performances. Whether you’re popping in for a drink or staying for the entertainment, O’Neill’s on St Mary Street delivers a great night out. Highly recommend!
See more posts
See more posts
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Find your stay

Pet-friendly Hotels in Wales

Find a cozy hotel nearby and make it a full experience.

First time in Cardiff yesterday and whilst waiting to go to the arena, I stumbled across this bar to kill some time, I have to say what a lovely experience I had in there. It was a very lovely setting and the live entertainment they had was brilliant in my opinion, It definatly started my day off in a brilliant way. If ever I'm in Cardiff again I will definatly be going back to O'Neil's. Hopefully the same band will be playing even though I have no idea who they were 🤣 Thank you for a great experience
Kayleigh Beard

Kayleigh Beard

hotel
Find your stay

Affordable Hotels in Wales

Find a cozy hotel nearby and make it a full experience.

Get the Appoverlay
Get the AppOne tap to find yournext favorite spots!
Very little respect shown to the Guinness... it wasn't poured properly which was disappointing for an Irish bar. Drink prices were very expensive... double the price of the same drinks compared to the Prince of Wales pub opposite, the tables were sticky and not cleaned, the toilets weren't the best, and the service wasn't particularly good (borderline poor/slow)... so I'm struggling to understand why anyone would frequent or return.
jamie bater

jamie bater

hotel
Find your stay

The Coolest Hotels You Haven't Heard Of (Yet)

Find a cozy hotel nearby and make it a full experience.

hotel
Find your stay

Trending Stays Worth the Hype in Wales

Find a cozy hotel nearby and make it a full experience.

A fantastic venue with a beautifully decorated interior that creates a warm and lively atmosphere. The staff are genuinely friendly and welcoming, which made the experience even better. We caught the drag show and had an absolute blast — full of energy, humour, and great performances. Whether you’re popping in for a drink or staying for the entertainment, O’Neill’s on St Mary Street delivers a great night out. Highly recommend!
Leon B

Leon B

See more posts
See more posts

Reviews of O'Neill's St Mary Street

4.3
(1,447)
avatar
5.0
1y

In the dimly lit haven of libations, amidst the rhythmic pulse of clinking glasses and murmured conversations, there exists a luminary whose presence eclipses all others. His name? Cam. A bartender not merely of spirits, but of souls.

Cam commands the polished bar with an air of mystique, his movements a symphony of precision and grace. Each flick of his wrist, each measured pour, tells a story untold yet understood by all who bear witness. He is not just a mixer of drinks, but a maestro conducting the intoxicating symphony of the night.

With a gaze as piercing as a shot of whiskey, Cam navigates the sea of patrons with an uncanny ability to anticipate their desires before they even speak them aloud. His eyes hold secrets, whispers of tales shared in the hushed confessions of the inebriated.

But it is not merely his skill behind the bar that sets Cam apart; it is the depth of his character, the silent empathy that flows beneath his practiced exterior. He is a confidant to the broken-hearted, a mentor to the lost, and a beacon of warmth in a world grown cold.

To step into Cam's domain is to step into another realm, where worries dissipate like vapor and laughter echoes like a chorus of angels. He is not just a bartender; he is a guardian of the human spirit, a custodian of camaraderie, and a master of his craft.

In the annals of bartending lore, Cam's name shall be etched in golden letters, a testament to the transformative power of a well-mixed drink and the enduring legacy of one...

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avatar
5.0
21w

⭐⭐⭐⭐⭐

If you’ve ever dreamed of having your favorite drink delicately spoon-fed to you by a man with the finesse of a caffeinated owl, then you need to pay Tom Hughes a visit. Forget traditional pints, forget the taps — this man defies the laws of drinking and elevates the Guinness experience to an art form.

I walked into the bar expecting a normal pint. What I got was a transcendent journey into the world of spoon-fed decadence. Tom, with his impeccable timing and steady hand, approached me with a spoon. A spoon, mind you, not a glass or a pint, but a spoon. He scooped a perfect dollop of creamy Guinness foam and, without a word, delicately placed it into my mouth as if I were some sort of royal in need of a bespoke beverage experience.

He wasn’t just handing me a drink; he was serving me an experience. Each spoonful was like a tiny, velvety cloud of happiness that gently floated onto my tongue, making me question all my previous drinking choices. Who needs to hold a glass when you can have Tom Hughes spoon-feed you liquid gold like some Guinness sommelier from another dimension?

I’ve never felt more pampered. Other customers looked on, slightly baffled, probably wondering if they'd stumbled into a weird Guinness-themed spa. I was in heaven. If you ever get the chance to be spoon-fed Guinness by Tom, DO NOT hesitate. It’s a once-in-a-lifetime event that will make every other pint you’ve ever had seem like a sad, forgotten memory.

10/10 would be...

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avatar
5.0
1y

O'Neill's: The pub where the Guinness flows as smoothly as the banter, and the hearty portions of food could probably feed a small village—assuming that village isn't too picky. From the moment you step in, it feels like you're either in an Irish village or a cozy, slightly chaotic living room of a long-lost friend. The staff are like family, if family was full of people who didn’t mind cracking a joke or two while serving you. And let’s talk about the food: If your stomach had a voice, it would be singing praises after a plate of their fish and chips. Crispy, golden, and practically begging for you to dip it in tartar sauce—this is comfort food at its finest.

The drinks? Well, it’s O’Neill’s, so expect a pint of Guinness so perfectly poured, you might start wondering if the bartender is actually a wizard. The ambiance is a delightful mix of cozy and lively—like someone threw a traditional pub into a blender with a splash of good vibes.

The only downside? You might leave with a food coma and a lighter wallet, but hey, that’s the price you pay for a night of laughter, food, and pints that come with a side of Irish charm. Would I recommend it? Absolutely—just make sure you’re hungry, thirsty, and prepared to leave with a smile on your face (and a bit of...

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