Kilmainham Gaol parking

From TripAdvisor, Kilmainham Gaol :

The Gaol is in a pretty congested area. There is some street parking nearby, but no guarantees. I dIdn't see any parking lots or parking garages. I also looked on the satellite view of google maps and didn't see any public parking denoted on the map. We took a taxi to get there. Hope that helps.

And this:
There is free parking in the vacinity if you look carefully. But on paid street parking is available I am 100% sure.

Do not drive there. Street parking is very hard to get and you'll end up driving around and around. Plus, you will need to pay for street parking via an app on your phone that isn't all that easy to use. Not worth it.

There is a hotel across the street from Gaol that you might be able to pay to park.....but there were guests only signs.

If you are staying in Dublin, you should look into taking the bus out there. That's what my wife and I did a little over a year ago. The bus driver was very helpful in telling us when to get off the bus, and the information desk at the museum was able to help us with what bus to take back to the city center.