Introduction: Prompt intervention to support healthy lifestyle modification following an initial stroke is crucial for supporting health behaviour change for secondary prevention. The 5-year rate of stroke recurrence is 6.4%, however, many stroke patients do not get the support they need to manage lifestyle risk factors post-discharge, particularly those who are not referred to inpatient rehabilitation. There is a need for services that support this underserviced group to reduce their risk of stroke recurrence by equipping individuals with the skills to self-manage secondary prevention behaviours (e.g., diet, exercise, medication-adherence). The Living Well After Stroke (LWAS) program aims to demonstrate the potential of the health action process approach (HAPA) for promoting adherence to stroke secondary prevention behaviours by imparting behaviour change skills. Aims: LWAS aims to support people with lived experience of stroke to self-manage their behavioural risk factors by equipping participants with a toolkit of theory- and evidence-based behaviour change strategies and techniques that can be transferred to other behavioural contexts. Methods: Adopting a prospective single-arm trial design, the intervention comprises 5 behaviour-change sessions with a trained facilitator over an 8-week period, with follow-up at 16-weeks. A mix of individual- and group-based assessments and interventions are delivered in-person and online. The intervention content is informed by the HAPA theoretical framework which comprises both initiation and maintenance processes which underpin health behaviour change. Outcome evaluation of behavioural and psychological variables and process evaluation will be conducted. Discussion: Participants’ performance of a stroke secondary prevention behaviour is expected to increase over the course of the program, as participants learn the toolkit of behaviour change strategies. It is also expected that transferability of the behaviour change skills will be demonstrated by participants applying the toolkit to improve performance of an additional secondary prevention behaviour from the final intervention session to the 16-week follow-up.