Abstract Background Thriving has emerged as a contemporary and health-promoting concept for older people living in nursing homes; however, there has been limited research to explore how nursing home staff identify thriving in their everyday practice. The aim of this study was to explore how staff recognize expressions of thriving among persons living in nursing homes. Methods Semi-structured interviews were conducted with 14 nurses working at a nursing home in Victoria, Australia. The interviews were audio-recorded, transcribed and analyzed using qualitative content analysis. Results The analysis resulted in six sub-categories and three main categories. Expressions of thriving were recognized in relation to how staff understood thriving, observed thriving and sensed thriving. Staff described comparing and contrasting clinical assessment indicators with their own personal and professional understandings of thriving, as well as their overall sense of the individual person within the wider situational and environmental context. Conclusions Our results illuminate how staff recognize everyday expressions of thriving for people living in nursing homes and emphasizes the importance of utilizing person-centred care principles in clinical assessments. These findings have practical implications with regards to how thriving is identified and assessed in long-term care, and could be used to inform and guide staff education, person-centred care strategies, and organizational policies to better support and promote thriving in nursing homes.