One week in Dublin too much?

I loved Dublin, but personally I think a week there is a bit much. You can do day trips to Newgrange, Glendalough, Kilkenny, even a bus trip out to the Cliffs of Moher (that's a full day I believe). If I were you though, I'd rent a car and just do maybe 2-3 nights in Dublin and get out and see some of the countryside more.

You don't say whether this is your first trip to Ireland or whether you have any experience driving on the left. If it is your first trip then I'd say there's plenty in and around Dublin to keep you occupied for a week.
Here's the "Things to do" list from Trip Advisor, FYI: http://www.tripadvisor.com/Attractions-g186605-Activities-Dublin_County_Dublin.html
While I agree that it would be great for you to get a car and explore some of the countryside, am guessing that you might not be comfortable with that. If that's indeed the case there are plenty of day tours that will take you to historic sites near the city: New Grange, Tara, Glendalough, etc. The pretty beach communities of Howth and Dun Laoghaire are just a DART ride away from the city center. If you're really adventurous you could always jump on the train to Belfast, explore the city, visit the Titanic Museum (world class) and still be back in Dublin in time for a pint.

Robert's comments are spot on. We spent 5 full days there on our first trip to Ireland and did not see everything. The RS Ireland book has plenty of suggestions. Have fun!

I agree with Robert, too. There is plenty to keep you occupied in and around Dublin for a week. I would start with a hop-on hop-off bus tour of the city as an introduction, and to get your bearings. There are many free museums, shopping, watching the buskers on Grafton St, and other things, as well as day tours to Glendalough or Newgrange. I have been to Dublin on two different trips and could still find plenty to do.

I loved Dublin. Besides the typical bus day tours out of the city (if the weather's good), Belfast is just a couple hours away by train.

Among my favorites - Archaeology Museum, Dublinia, Literary Pub Crawl. I saw two very good plays (London quality at Irish prices) at the two theaters. Many pubs have live music and people are friendly and talkative everywhere.

On my first trip to Ireland we spent one week in Dublin and had no shortage of things to do. We did some day trips from the city which was nice because it got us out of the urban setting for a bit. I would not hesitate recommending a week spent in and around Dublin.

Absolutely! Very easy to spend a full week in and around Dublin. And you don't have to change hotels. Just day trip. Have fun!

Funny.. two years ago we visited Dublin for 4 days. .
I did not want to go to Dublin.. in fact.. Ireland in general did not really interest me.. it was only because hubby desperately wanted to "see the land of my people" lol.. that I worked in 5 nights there on our much longer Europeon vacation.

I loved it. .We had tons to do. I was very surprised.. lol
We visited museums( they have really good ones.. not sure why folks don't talk about them much )
We took a short commuter train to Howth ( its like 25-30 minutes) and walked the cliffs and had the best mussels ever at a small place on the docks.
We visited NewGrange and Hill of Tara.
We took the best Rural Pub tour ( it was a highlight.. out in the countryside .. lovely places and lovely small group tour with fun and lively tour guide who gave us tons of tidbits )

We are returning to Dublin next May for five days this time.

With seven days you could do more daytrips.. and there are many to do ..

Yes, there's plenty to do in Dublin for a week, and you can easily take day trips to the countryside. You definitely want to see plays at the Gate or the Abbey. Even if you don't generally attend plays, you will be astounded by the quality of the productions at these venerable theatres.

We were in Ireland in May, 2014 and found a delightful B&B on the edge of Dublin, the Ariel House. Currently ranked #2 on the TripAdvisor list of Dublin hotels, this is actually a mid-price lodging. The breakfasts are absolutely legendary and you can walk downtown from the Ariel. A nearby train station can also take you south along the coast, or bring you into the city center.

Another top pick: The Palace Bar at 21 Fleet Street. Outside of the insanity of Temple Bar and a hangout for what's left of Dublin's reporters and writers. The back room has a stained glass ceiling.