This study was conducted to examine the information behaviour of informal caregivers in a university college hospital in Ibadan, Nigeria. Informal caregivers in the teaching hospitals constitute critical pubic health care players whose information behaviours have not been studied. Data was collected from 208 caregivers using a questionnaire that consisted of structured and open-ended questions. The study found that healthcare providers were the primary source of health for caregivers, with 34.1% actively seeking information from them. The caregivers seldom utilised sources like the internet, community organizations, books, family, and friends. The preference for healthcare providers as sources is due to their accessibility and ability to provide prompt and accurate answers. Caregivers have diverse information needs, including medication-related information, first aid techniques, nutrition, exercise, mental health, and lifestyle choices. They seek this knowledge to make informed decisions that improve their loved ones’ well-being. The study also revealed that caregivers heavily rely on information technology for health information due to its accessibility and reliability. The study highlights the need for ongoing training and proactive information sharing by healthcare providers to better support informal caregivers in Nigeria, emphasizing the importance of integrated support systems within healthcare facilities. To meet diverse information needs, healthcare institutions should diversify dissemination strategies, including culturally sensitive materials and digital literacy programs, while developing tailored mobile applications and online support communities for caregivers. Policymakers must focus on creating supportive healthcare policies, funding caregiver programs, and expanding insurance coverage to alleviate financial burdens, ensuring that caregivers have access to necessary resources and information.