So, you’ve decided to road trip through Ireland — brilliant choice! There’s no better way to soak in our country’s rolling green hills, ancient ruins, coastal cliffs, and warm village pubs than by setting out on a four-wheeled adventure. But if you’re an American visiting Ireland for the first time, the thought of driving here might stir up a case of nerves. Don’t worry! You’re not alone, and we’ve got your back.
At Overland Ireland, we’ve helped countless US travelers navigate the joys (and quirks!) of Irish roads, whether they’re exploring solo on our self-drive Ireland tours or kicking back in comfort on one of our small group tours of Ireland.
Scroll down to start your essential guide to driving in Ireland for US drivers! It’s packed with local insights and practical tips to help make your journey smoother and more enjoyable. If you have any questions for us as we go, please just get in touch.

Left is Right: Driving Orientation in Ireland
Let’s start with the big one: Yes, we drive on the left side of the road in Ireland. It feels strange at first, but most of our American guests tell us they get the hang of it quickly. The trickiest bits are roundabouts and right-hand turns (which cross traffic). With this in mind, one of the best left-side driving tips is simply taking it slow on your first day or two and avoiding busy city driving until you’re confident. Familiarity will only increase with exposure!
Another adjustment? If you rent a manual car, you’ll be shifting gears with your left hand. If that sounds like one new skill too many, opt for an automatic. They’re in high demand, so book early!

Ireland Road Types and Conditions: What to Expect
You won’t find long, straight interstates like back home. In general, roads here are smaller and more winding than you might be used to, so allow extra time for journeys. You won’t regret it! Irish roads are full of charm and occasional surprises, so they’re a welcome ingredient in the memories you make in the Emerald Isle. The fact that they pass through some stunning scenery certainly helps!
So, what road types can you expect to encounter in Ireland?
- Motorways (M roads): These are your major highways. Smooth, efficient, and tolled in places.
- National Roads (N roads): Well-maintained, connecting key towns and regions.
- Regional Roads (R roads): Often scenic, sometimes narrow, occasionally sheep-filled.
- Country Lanes: Delightfully photogenic but famously tight. Take them slow and pull in for oncoming cars when needed.
Are you looking for as much Irish vacation inspiration as possible? Let us help you find your Northern Ireland and Ireland driving itinerary!

Ireland Road Rules: The Must-Knows
A guide to driving in Ireland wouldn’t be complete without a few key laws and customs. Below, we have listed some of the essentials you must know before getting behind the wheel:
- Speed limits are posted in kilometers per hour (km/h). For Motorways, this is 120 km/h, rural roads 60 km/h, and ‘urban cores’ 30 km/h. Watch out for roadside speed limit signs!
- Seat belts are mandatory for everyone.
- Mobile phone use is illegal unless hands-free, but even this is still strongly discouraged.
- Alcohol limits are lower than in the US. If you’re driving, don’t drink — period.
Insurance is required. Basic coverage usually comes with rental cars, but be sure to check what’s included and consider extra coverage for peace of mind.

Renting a Car in Ireland: Tips for Americans
Planning on renting a car and hitting the open road here in Ireland? Here’s what you need to know before picking up the keys:
- You can drive in Ireland as a tourist with your valid US license — no need for an international permit.
- Most rental agencies require drivers to be at least 25 years old. Some allow younger drivers with a surcharge.
- Smaller cars are better suited to our narrow roads and are easier to park. Trust us: you won’t need that SUV.
- Fuel is sold by the liter. Diesel cars are common and often more fuel-efficient.
- Book an automatic early, as they’re limited in supply.
Want a worry-free version of all this? Our Self-Drive Ireland Tours include your rental car, accommodation, detailed itineraries, and support, so all you have to do is drive and enjoy!

Roundabouts, Signage, and Parking in Ireland: The Quirks to Know
Ah, the famous roundabouts! They’re everywhere — and once you master them, you’ll wonder why the US hasn’t caught on! But for newcomers, a little helping hand in getting to know them better goes a long way. Here are some all-important pointers to help get you started:
- Yield to traffic coming from the right.
- Enter the roundabout by turning left.
- Go around the roundabout in a clockwise direction.
- Signal your exit like you would a turn.
Road signs use international symbols, and speed limits are in km/h, so lower those speed expectations! In rural areas, signage may be in Irish (Gaeilge) as well as English, but directions are generally clear.
Parking in towns can be tricky. Look for “Pay and Display” machines, and don’t forget to display the ticket clearly on your dashboard. Avoid parking in front of driveways, on yellow lines, or on footpaths (sidewalks) as you could be in for a fine when you return!
Are you leaning more toward a self-drive experience? We think you will love reading our blog about the best self-drive vacations in Ireland for even more ideas and inspiration.

Should You Drive in Ireland or Let a Local Take the Wheel?
This guide to driving in Ireland is meant to help you decide if you’re ready to hit the road yourself, or if you’d rather relax and leave the driving to a pro. Self-drive tours offer flexibility, freedom, and a touch of adventure. You’ll go at your own pace, linger at that perfect view, and explore charming places off the beaten track.
But if the idea of navigating tight country roads, roundabouts, and parking isn’t compatible with a relaxing and enjoyable vacation, we’ve got you covered. Our small-group Ireland tours and private tours of Ireland come with friendly guides who handle the driving, storytelling, and all the logistics. You just sit back, take in the scenery, and enjoy every minute of your time in the Emerald Isle.
Looking for more advice? Check out our blog Guided Tours of Ireland vs Self-Drive Tours of Ireland when you have finished here.

Ireland Driving Etiquette: The Unwritten Rules
Every country has its own set of unwritten rules for the road, and Ireland is no different. There are a few things you won’t find in the rulebook but should know before setting off:
- The “finger lift” wave: A casual hand or finger raise to say thanks when someone lets you pass. Use it — you’re one of us now.
- Flashing headlights: Often means “go ahead” rather than “back off.”
- Locals driving fast: Some folks know these roads like the back of their hand. Don’t feel pressured to match their pace.
- Use pull-ins on narrow roads: Let others by. It’s polite and always appreciated.
Your Self-Drive Ireland Tour (or Small-Group Guided Tour) Awaits!
We hope this guide to driving in Ireland for US drivers has helped you decide whether you’re ready for a self-drive Ireland tour or if a small-group guided tour of Ireland makes a better fit. Whichever option you choose, we’ll help you experience the authentic, unfiltered Ireland.
Browse our carefully crafted itineraries and find out what kind of road trip works best for you. And if you have any questions for the Overland team, please don’t hesitate to contact us!