This study identifies some hygiene and motivator factors (work environment, professional identity, job stress) and their influence on job satisfaction among Nigerian psychiatric nurses in diaspora. The study employed a descriptive cross-sectional design in which data was obtained via an online survey. The target population included registered Nigerian nurses working in inpatient psychiatric hospitals in the United States. A combination of purposive sampling and snowballing techniques were used in selecting 109 participants. Two hypotheses were formulated and tested using appropriate statistics. Results showed that work environment, professional identity and job stress had a significant joint predictive influence on job satisfaction [F(3, 95)=8.304; p<.05] and accounted for a significant variance of 22.7%. Further results showed that only work environment (β=.460; p<.05) emerged as a significant positive independent predictor of job satisfaction. The moderating effect of job experience in the relationship between work environment and job satisfaction was not significant (∆R2=.0215; F(1,87)=2.2076; p>.05). Suitable recommendations were made in line with the study outcomes.