The presidential election and blasphemy referendum will be held on Friday, October 26.
Here's what you need to know about polling day.
Polling stations will be open from 7am to 10pm.
You can check to see if you're on the voting register at checktheregister.ie
You should receive a polling card in the post telling you at which polling station to vote. If you don't receive a card, you can still vote if you are registered.
You don't need to have your polling card with you on the day, but you should bring a valid form of identification. This can include a passport, a driving licence, a public services card, or an employee or student ID card with a photograph.
We're voting in a both a presidential election and on the blasphemy referendum, so you'll get two polling cards. There will be a green ballot paper for the referendum and a white ballot paper for the election.
You vote by marking an 'X' in the 'Yes' box, or an 'X' in the 'No' box. You are not allowed mark any other part of the ballot paper and you can only mark one box. Otherwise, your vote will be a spoilt vote.
The names of the candidates appear in alphabetical order and no political affiliations are given. The voter should indicate the order of his or her choice by writing 1 opposite the name of his or her first choice and, if he or she so wishes, 2 opposite the name of his or her second choice, 3 opposite the name of his or her third choice and so on.