O'Neill's Irish Pub

Standard Irish PubSurprisingly for an Irish pub - they did not have an Irish Red Ale - head scratcherGood location for a quick drink and chatThe cute bartender knew how to pour a perfect Guinness :) 4 stars !!

This is a fun no frills Irish bar with tons of regulars. Enjoy trivia on Wednesday nights at 8pm, or come in for a weeknight Guinness. Sometimes there's a food truck out front, or you can visit George's next door and they will bring it over to you. You can also bring in food. My favorite is the Calisqueeze on tap.

Stumbled upon O'Neill's Irish Pub after dinner in downtown San Mateo when my friends and I were looking for a second location to keep the night going. Lucky for us, it just so happened to be karaoke night (Saturday at around 9 PM)!They checked our IDs at the door and we settled at one of their larger tables for our group of 8. As some of our group went up to the bar to get drinks, they got started on the music. I appreciated that the DJ started the karaoke night off with group songs. They had so many mics and were handing them out to the different groups so everyone could sing along from their tables.After 3-5 group songs that everyone loved and could sing along to, they started to take requests for solo singers. It was fun to see individual singers go up to their "stage" area to sing their songs of choice. Now, I will say, the crowd and vibe was more of a rap/hip hop/alternative rock karaoke with a couple 80s/90s pop songs sprinkled in between. So... if showtunes or ballads or current pop is more your vibe, might have to check out another bar. Or maybe it was just the crowd that night. Either way, it was all a great time and everyone was having fun. No one was being sloppy or annoying and the DJ kept the party going.A great bar if you're a large group looking for plenty of seating and good drinks!

We came on a Saturday and it was a super fun karaoke night. The energy was up and the crowd was vibing. Beers were only about $6! A must come for a quick drink or even a night out

Great ambiance great vibes. Great place to chill with the lads in downtown San Mateo. Parking a little tricky but there are a few lots nearby. The Guinness was tasty shoutout to Monica! Dope bartender will be coming back

I had a horrible experience , I saw manager whose name is Michele, flip off her staff in front of a bar full of customers!!! That's some of the most low life behavior I have seen from a so called "manager" Then I was invited there by a business partner and we I was hesitant to go but I felt obligated and the same horrible old lady was swearing at someone on the phone, and it was on the business line. How unprofessional and unhappy do you have to be. I can see why her she is worried that ex!s are banging the regulars and that's what I heard from a regular and that it's not the first time and I am not surprised!!!! Avoid this place if you see MICHELE , and for the owners you should get rid of her before she destroys your business!!!

Pretty standard Irish pub with a good selection of beers on tap and friendly staff. The main highlight of this place is the Wednesday Night Trivia nights, which has been my favorite trivia in the area this far! One downside is cleanliness, especially in the bathrooms (I don't know who thought putting the toilet in the same open room as the urinal stalls was a good idea, but it was certainly not).

My friend is a big fan of Irish pubs and we dropped by here recently. It is one of her favorite Irish pubs in the peninsula area.The night we dropped by had a DJ and live music, a small dance floor. It was probably too early and no one was dancing. A bit disappointing.Drinks are pretty good though. People are nice. The place is lively and very popular. But needs some maintenance. I am pretty sure that my friend will keep coming back. I likely will drop by here again with her. LoL

Bartender is attentive and friendly and funny. It was my second time in here with my husband. Both times, we felt welcomed with the warmth I imagine being reserved for regulars. Beers on tap are diverse and good selection. Multiple screens to be able to watch many sporting events simultaneously.

Great place but the bartender tonight was just so bad that it ruined the evening. He had a big attitude and was making everything difficult. Why? We were there to have a good time and spend money.