How long it will take to get a divorce in Ireland largely depends on whether your matter is on consent or is contested.
Separating couples can agree everything between themselves in terms of children and finances, if there are children and finances to agree on. However, one spouse will still need to apply to the Court and serve a Family Law Civil Bill and accompanying Affidavits.
In a consent divorce and where there has been prior agreement between the parties, the other spouse will not file a defence. Instead, they will sign Terms of Consent and have their matter listed before the judge. This can take anywhere from 3 to 9 months depending on where you are in Ireland.
When it comes to a contested divorce, that is you and your spouse cannot agree, then it can take anywhere between 9 months and 2 or 3 years to complete. One party might need to push the other side along and equally that person might drag their heels and intentionally delay the matter.
You need a good family law solicitor to progress your case quickly so you can get your decree and move on with your life.