Background: Little is known about heart failure (HF) caregiver self-care. Methods: This article reports a secondary analysis of data from a cross-sectional, descriptive study involving 530 HF caregivers. A three-step latent class mixture model identified HF caregiver classes at risk for poor self-care and examined the relationship between the identified self-care classes and caregiver burden and depression. Caregivers completed online surveys on self-care, caregiver burden, depression, problem-solving, social support, and family function.