You can check your eligibility via a quiz on giveblood.ie.
A blood donation clinic is being held in Portarlington this evening.
It's currently underway at the community centre, until 8 o'clock this evening.
If you're well and healthy, you're encouraged to come along, and you can also check your eligibility at giveblood.ie
The Irish Blood Transfusion Service says 3,000 donors are needed in Ireland every week.