Emotional intelligence (EI) is important for mental health and successful human interaction. We aimed to test the psychometric properties of the Trait Meta-Mood Scale in the Cuban population. In Study 1 (N = 625), the scale had high internal consistency and the expected three-factor structure. We had to remove one item, as it was negatively correlated with the rest of the items on the scale—resulting in the Cuban TMMS-23. In Study 2 (total N = 240), we tested the scale’s nomological validity: We found that EI had medium-sized positive correlations with extraversion and emotional stability. Negative associations were found between EI and negative affective states. Furthermore, EI was positively correlated with resilience, well-being, optimism, and protective factors for mental health. Thus, the TMMS-23 can be recommended for use in the Cuban context.