The luck o' the Irish is the stuff of myth and legend, and something those who are not Irish often find themselves drawn to. Four-leaf clovers, leprechauns, and that elusive pot of gold all indicate that Irish culture is steeped with enjoyable and indelible folklore about luck. Irish tattoos are a way to keep yourself lucky all the time!
The symbols of Ireland that we have come to know are often the ones associated with luck and fortune. However, not every Irish tattoo is about only luck. The shamrock, for instance, is one of the most famous symbols of Irish culture, and is more about faith than fortune. The shamrock, with its three leaves, represents the trinity of the Father, Son, and Holy Ghost.
Of course, when a lot of people think of Irish tattooing, they think of popular Celtic symbols like the Claddagh and the Celtic cross, and the intricate knotwork that goes into these designs. These make for beautiful tattoos because of the elegance of the lines and the careful amount of detail that goes into the knots.
A tattoo of something Irish doesn’t have to be Celtic to be meaningful and have a story behind it. There are many famous symbols that have come to represent luck, which we can never have too much of. It makes for a fun piece of body art, to walk around knowing that the symbol on your arm or lower back -- or wherever you choose to put it -- means that you'll have good luck.
Source : http://www.body-jewelry-useek.com/1350-irish-tattoos.htm