Not really Irish, but
a really great pub
Why locals love it
"Irish pub" in the fairly generic sense of the term, but a good value, and a great place if you're starting early (closing usually at midnight). Village beer "Taruškų" for only 5 Litas is a must-try. Excellent and friendly staff. Nice, mid-price selection of pub food and beers snacks.
Why you should visit it
Most recommended especially when the weather is warm enough to enjoy seating outside, with a nice view of the main street in the old town. In winter time everyone moves inside and the small interior helps keep things social.