A notary public is a public officer established by law to serve the public in non-contentious matters usually concerned with foreign and international business.

Notaries public are legally trained individuals and must be registered with the Irish government to practice as a notary.

Notaries are primarily concerned with matters of title to the property, both real and personal. Notaries also have the power to administer oaths and affirmations. Many legal documents you see in the day-to-day business of life will require a notary's seal and signature in order to be valid. 

If you want your document to be recognized in another country, you should consult a notary public. A notary may perform other tasks as well, depending on the area in which he or she lives.