The Republic of Ireland Beached Bird Survey (RIBBS) is a citizen science based research project to assess the potential of beached seabirds as a marine litter monitoring tool in Ireland. Beached seabirds are collected by researchers and volunteers and, the litter content in the stomachs of birds is used as a measure for the presence of marine litter and its interaction with seabirds. Beached seabirds can provide Ireland with important data, comparable to other European countries that will help meet our marine litter monitoring obligations and inform national policy in this area.