Background: Nurses are hands-on caregivers that make major healthcare contributions. The study was aimed to assess nurses’ roles in providing care to the patients admitted in tertiary level hospitals. Materials and methods: This descriptive, cross-sectional study conducted was among the registered nurses working in the tertiary level hospitals in Bangladesh, during the period of June 2015 – October 2016 in five tertiary level hospitals located at Dhaka, from government and private sectors. Using convenience sampling technique, 225 registered nurses were selected. Data were collected using a pretested structured self-administered questionnaire.