Yes a visa is required.
NO
No
It depends on your nationality (the passport you hold).
It depends on where you are coming from As Northern Ireland is part of the UK you will need the same Visa that you would need to enter any other part of the UK. If you are a UK citizen you do not need one
No, there is no need to have visa traveling to EU countries. But in countries like Russia, Ukraine, Belarus British may need some additional permissions.
For American citizens there is no requirement for a visa when visiting Ireland for up to 90 days. For other citizenships there are consulates in major cities that you will need to contact.
yes i need visa to enter Ireland
If your are a European citizen you do not need a visa If you are from a visa waiver country you do not need a visa if your stay is less than 90 days If you are none of these go to the French embassy in London
Yes South African passport holders require a visa. You cannot get an Electronic Travel Authority (ETA). You must apply in person at your nearest embassy.
do a refugee travel document of Canada need visa for Germany
No, a South African citizen does not need a visa to visit Dublin or anywhere else in Ireland. If you are travelling via the UK (even in transit) I think that you now need a visa. (Not for Ireland but for the UK.) Worth checking out prior to travel just to be sure!
Yes, Jamaicans need a visa to enter Ireland.