Abstract Background Self-injurious thoughts and behaviours are a major global public health concern, not least because they are one of suicide’s strongest predictors. Solution-focused approaches are a psychotherapeutic approach currently being used to treat individuals with self-injurious thoughts and behaviours but there is little published evidence of their use. We conducted a scoping review to provide a comprehensive overview of how solution-focused approaches are being used to treat self-injurious thoughts and behaviours. Methods Publications describing a solution-focused approach being delivered to any individuals experiencing any form of self-injurious thought and/or behaviour were eligible for inclusion. Five databases were searched (EMBASE, PubMed, Web of Knowledge, PsycINFO, and Google Scholar) from inception to August 2024. Search terms contained keywords relating to both solution-focused and self-injurious thoughts and/or behaviours. Data were analysed using relevant steps from a narrative synthesis approach to summarise the participants, concepts, context and outcomes described in the included publications. Results Twenty-four publications were included in the review. Publications demonstrated a global reach although the majority were published in the UK and USA. Five publications formally assessed and reported outcomes; two randomised controlled trials, one experimental pilot study, one case study, and one single group study. Only the Beck Depression Inventory was collected in more than one study (n = 4), with a range of other psychopathology and wellbeing-related measures. Three studies reported qualitative data, finding positive perceptions of the approaches by patients and clinicians. Fifty-one unique components were identified within solution-focused approaches. Often specific adaptations were described, or components were introduced, that specifically addressed suicide or self-harm. For example, identifying and working on goals related to reducing or stopping self-harm, or scaling questions that assess how suicidal someone currently feels on a 0 to 10 scale. Conclusions This review demonstrates the application of solution-focused approaches for treating individuals with self-injurious thoughts and behaviours. The findings provide a comprehensive overview of how these approaches are delivered. The lack of outcome data and empirical studies highlights a need for more formalised evidence.