The growing demand for sustainability across all sectors has heightened the importance of sustainability in accounting education. This study examines the integration of sustainability in accounting education within Nigerian universities, with a specific focus on the South-East region, which has 10 public universities. Using a mixed-methods approach that combines content analysis of accounting programs’ curricula and an online questionnaire administered to 201 respondents, the study specifically examines the extent to which sustainability accounting has been incorporated into the curricula of different accounting programs and the level of awareness of sustainability accounting. The findings reveal that 5 out of the 10 public universities in the South-East have made strides in integrating sustainability accounting into their curricula. Out of the 5, only one has integrated sustainability accounting at both undergraduate and postgraduate levels; the remaining 4 offer sustainability at the postgraduate level. 42.8% of the respondents demonstrated a high level of familiarity with sustainability accounting, with research being the primary source of knowledge. This study contributes to the ongoing conversation on the importance of sustainability in accounting education, highlighting the need for increased awareness and integration of sustainability principles in Nigerian universities.