There are 3,000 opportunities available for people who want to help out in their community or do some charity work.
National Volunteering Week, which has been promoting volunteering has been running since 2012, is taking place this year from May 11-17.
Nina Arwitz, CEO of Volunteer Ireland, said that the aim of the initiative to to help people who want to volunteer to get involved.
"What we're hoping to achieve is basically more people volunteering," she said.
"Research we carried out recently showed that about 20% of people want to volunteer, but they just don't know where or how to find out about opportunities.
"So the week is all about sign-posting them to where they can get involved in volunteering.
"And it's really easy - we've got a national database of volunteering opportunities at volunteer.ie, and you can go on that database and there's about 3,000 opportunities at the moment."