Background/Objectives: This study explores the potential of integrating mindfulness and the Mediterranean lifestyle into corporate wellness programs to enhance workplace well-being. Methods: A survey of 485 employees from Greece and Cyprus examined how mindfulness, resilience, adherence to the Mediterranean lifestyle, and work ability are connected. Results: Pearson correlation analysis showed statistically significant positive relationships between mindfulness, resilience, and work ability (p < 0.001 and p < 0.001, respectively). Mindfulness was associated with higher job satisfaction (p < 0.001) and was a significant predictor of good (OR = 1.112, 95% CI: 1.043–1.186, p = 0.001) and excellent (OR = 1.163, 95% CI: 1.087–1.245, p < 0.001) work ability, while adherence to the Mediterranean lifestyle had a lower yet significant positive correlation with resilience (p < 0.01) and work ability (p < 0.05). Differences in wellness across job sectors were observed: employees in health and retail sectors had lower resilience, work ability, and mindfulness compared to those in manufacturing, technology, education, and services. Notably, 78% of participants expressed interest in future wellness programs, favoring a combination of online and onsite formats. Conclusions: These findings suggest that mindfulness and the Mediterranean lifestyle can enhance employee well-being and productivity, but sector-specific strategies may be necessary to address unique challenges. Practical applications include tailoring interventions to meet the needs of employees in sectors with lower wellness scores. Future research should investigate the long-term benefits of such programs across diverse industries and employee groups.