Cognitive stimulation therapy (CST) is the only evidence-based intervention that improves cognition and quality of life for people with mild-moderate dementia. CST offers an ideal solution to the demand for early interventions for those with dementia in Ireland. Although approximately 320 people are trained to deliver CST here, an ‘implementation gap’ has emerged where those trained often do not run CST, so CST is not routinely available.  This research aims to gather information on when/where CST is being offered and to explore barriers to its implementation, with a view to providing recommendations to facilitate greater availability of CST in Ireland.