Quality of life and loneliness are closely associated with mental and physical health outcomes. This relationship is particularly important in Veterans who experience elevated rates of disabilities, comorbidities, and chronic health conditions as compared with non-Veterans. In the present project, we use data from the Military Health and Well-Being Project (n = 1469, 67.2% men, 32.3% women, 0.5% transgender, nonbinary, prefer not to say) to investigate the link between five domains of quality of life (i.e., general quality of life, physical health, psychological health, social relationships, and environment) with loneliness in American Military Veterans. Findings indicated that every domain of quality of life was negatively and significantly associated with loneliness (r’s