Abstract Objectives Amyotrophic Lateral Sclerosis (ALS) is a systemic and terminal disorder of the central nervous system which causes paralysis of limbs, respiratory and bulbar muscles, impacting on physical, communication, cognitive and behavioural functioning. Informal caregivers play a key role in the care of people with ALS. This study aimed to explore experiences of burden along with any beneficial aspects of caregiving in ALS. An understanding of both burden and benefit is important to support the informal caregiver and the person with ALS. Methods/Design This exploratory mixed methods study characterizes two groups of informal caregivers in Ireland ( n = 76) and the Netherlands ( n = 58). In a semi‐structured interview, quantitative data were collected in the form of standardized measures assessing psychological distress, quality of life and burden. Qualitative data were collected from an open ended question, in which caregivers identified positive aspects in their caregiving experience. These data types were purposefully mixed in the analysis and interpretation stages, to provide a greater depth of evidence through diverse research lenses. Results The caregiver cohorts were predominantly female (69%) and spouse/partners (84%) of the person with ALS. Greater levels of self‐assessed burden were found among the caregivers in the Netherlands ( p < 0.05), and higher levels of quality of life among the cohort from Ireland ( p < 0.05). Themes generated through qualitative analysis identified caregiver satisfaction, ability to meet the patient's needs and the (re) evaluation of meaning and existential aspects of life as positive aspects of caregiving. Existential factors were identified frequently by the caregivers in Ireland, and personal satisfaction and meeting their care recipient's needs by caregivers in the Netherlands. Three percent of all respondents reported there was nothing positive about caregiving. Conclusions Based on our findings, we suggest that both burden and the presence of positive ...