The present study investigates the influence of cultural differences on organisational-based self-esteem within New Zealand. A sample of 211 New Zealand European employees and 291 Māori (indigenous people of New Zealand) employees answered a range of questions on organisational-based self-esteem, job, and mood outcomes. Findings suggest that organisational-based self-esteem was directly associated with job satisfaction, organisational commitment, and organisational citizenship behaviours, as well as positive and negative affect. Relationships between variables were tested for each sample separately and for a combined sample. A comparison between the separate and combined samples was also investigated. The findings from this study suggest that organisational-based self-esteem has a greater influence on job outcomes and mood outcomes for Māori when compared with New Zealand Europeans. This could be because employment fulfils a basic need for self-determination. The present study suggests the implementation of tailored management policies to support cultural differences within New Zealand’s vibrant and diverse workforce.