Purpose: In resource-limited settings, family caregivers (FCGs) of adult cancer patients (ACPs) function in a context marred by high patient symptom burden, limited cancer care services and support and high caregiving burden. Despite this predicament, little is known about the quality of life (QoL) of FCGs in these settings. The study aimed to explore the determinants of QoL among FCGs of ACPs in Uganda.; Methods: A cross-sectional design was used to collect data from 284 FCGs of ACPs.