O'Neill's St. Mary Street Cardiff

20/09/2026

Looking for the perfect place to celebrate? 🎉
At O’Neill’s, the good vibes never stop! Whether you're planning a night out with friends or just want to enjoy an unforgettable atmosphere, we’ve got you covered!! 🤩

🍻 Great parties every weekend
📺 Live sports on big screens
🎤 Karaoke every Friday
✨ And so much more!

Come and visit us on the weekends and experience the best nights in Cardiff! 😁

📸 Photos by https://www.instagram.com/knot_photographs/

18/09/2026

17/09/2026

17/09/2026

☘️☘️☘️☘️☘️☘️☘️☘️☘️☘️☘️☘️☘️☘️☘️☘️☘️Join us Today for our Half Way to St Pats Celebration

Live music today

3pm - Tony Morley with a Irish fiddle
🕺💃🎻🎻🎻

5:30pm Matt Blumberg 🕺💃🎤🎤🎤

DJ K- Netik into the early hours

Offers on Guinness 🍻🍻🍻🍻🍻

🤑 Student discount available all day 🤑

16/09/2026

In case you didn’t know… 🎤 Wednesdays are for KARAOKE! 🎶

Students, this one’s for you! 🙌 Bring your mates, grab the mic and sing your heart out — plus, student discount! 🎓✨

📅 Every Wednesday
🎤 Karaoke all night
🎓 Student discount available

16/09/2026

15/09/2026

This Thursday, we’re hosting and you’re invited… 👀☘️

Grab a friend & head to O’Neills St Mary Street for the ultimate Craic! ☘️🍻

🎓 Student drinks from just £3.25
📲 Plus, unlock exclusive deals with the O’Neills app!

Don’t miss out — see you Thursday! 🍻

14/09/2026

Monday means one thing… it’s QUIZ NIGHT! 🧠🍻

£50 bar tab up for grabs 💷🍺
Round up your cleverest mates, grab a drink and put your general knowledge to the test!

📍 O’Neill’s
🕗 starts 7pm (ish)
👥 Teams up to 6 welcome

See you there🫵🏼