The Dog Friendly Map
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Days Out Are For Dogs Too
Indoor Welcome Last Verified:
20 Oct 2026
O'Neill's St Mary Street is a busy Irish pub right in the heart of Cardiff, where dogs are welcome inside alongside the usual crowd of sports fans, city visitors and anyone in for a drink or a bite.
The pub serves food throughout the day and screens live sport, making it a handy all-rounder when you're exploring the capital with your dog. The dog-friendly policy means you can settle in for a proper meal or a quick pint without leaving anyone outside and the central St Mary Street location puts you within easy reach of Cardiff's shops, castle and waterfront. It's open from 10am daily, running through to late evening midweek and past midnight at weekends.
Whether you're breaking up a day of sightseeing or meeting friends for the match, it's the sort of reliable city-centre stop where both ends of the lead are looked after.
Good to know:
Water bowls available
Free treats available
Doggy menu available
Dog Policy:
Dogs are welcome inside. Food is served throughout the day, so the whole group can settle in for a meal or a drink in the heart of Cardiff.
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