Pub Home & About Us

A Great Pub in Trinity Street Cardiff

A visit to our pub in Trinity Street Cardiff will help you understand why our customers like to come back time and time again. Some come for the pub food, while for others it's our live music. The one thing everyone agrees on is that we serve the best Guinness® and countless other great draught beers and ales. Perhaps you should find us and see which it is for you.

What We are Famous For...

At Trinity St we're just like the friendly local that manager Jane remembers from earlier days in County Monaghan. We have live music five nights a week, pour the best Guinness in town (don't tell the other O'Neill's on St Mary St) and serve fantastic Irish food. Upstairs doubles as a function room and is popular for weddings and parties, and we're just down the road from the Millennium Stadium - so perfect for a pre/post (or during) match pint. We also host a Comedy Festival every summer that's attracted the likes of Rhod Gilbert and other stars.

A Warm Welcome When You Visit

There's always something new to enjoy whenever you visit. The only constant is that we'll always make sure you get a warm welcome and a cold beer. Come in for the great food, the live music, or for a perfectly poured pint of Guinness® or chilled Magners.

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O'Neill's Trinity Street Cardiff - You're Guaranteed a Warm Welcome

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A picture of an O'Neill's team member serving pints of Guinness.

Opening Times

  • Monday to Thursday: 11am - 12am
  • Friday: 11am - 1am
  • Saturday: 10am - 1am
  • Sunday: 10am - 12am

What's On

Fri May 25 21:00

Smokin' Aces

We are very proud to boast Claire and Jamie as one of our resident Bands they play every Thursday playing everything from a good ole Irish gig to modern pop Join us to hear them rock a Friday night

Sat May 26 21:00

2 Tickets 2 the Gunshow

A regular a O'Neill's always good for a night out

Every Day

Keep in touch on facebook

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Every Monday

Quiz night

Great nights fun and the chance to win yourself a meal voucher too!

Every Tuesday

Open Mic with Rob Cross

COme along an showcase your talents - for a bit of fun or we are always on the look out for good acts!

Every Wednesday

John Godwin

Fantastic weekly acoustic set - He's like a human jukebox!

Every Thursday

Smokin' Aces

Live acoustic duo playing everything from a good ole Irish gig to modern pop

Every Friday and Saturday

Live Music

Join us for some fantastic Bands every Friday and saturday night from 9pm for a 'craicing' weekend