Resumen: Eudaimonic well-being is related to activities that lead to self-realization and personal development, goals and growth. Emotional intelligence and personality traits play a role in the perception of emotions, self-esteem and motivation and therefore in well-being. Although previous studies have analyzed the relationship among personality, emotional intelligence and well-being, the relationship between all three constructs and the predictive value of personality and emotional intelligence in the study of eudaimonic well-being in adolescents remains to be analyzed. This study evaluates this relationship and the predictive role of personality and emotional intelligence in eudaimonic well-being in 1031 Spanish secondary school students aged 12 to 17 (49.37% male, average age = 14.91 years). A quantitative field survey was conducted which included the distribution of the eudaimonic well-being questionnaire, the emotional intelligence questionnaire and the personality questionnaire. Descriptive statistics and correlations among eudaimonic well-being, emotional intelligence and personality well-being were calculated using SPSS Statistical Package software. Stepwise multiple regression was used to estimate the predictive value of personality and emotional intelligence in the study of eudaimonic well-being. Finally, a structural equations model was designed with AMOS software. The results show that these constructs are related and that personality and emotional intelligence are important variables for eudaimonic well-being. In addition, activity and anxiety factors (related to personality) and emotionality and well-being factors (related to trait emotional intelligence) have been shown to have predictive value in the study of eudaimonic well-being in adolescents. These results underline the value of personality and emotional intelligence in the study of eudaimonic well-being and present new research perspectives. Idioma: Inglés DOI: 10.3390/su12072742 Año: 2020 Publicado en: Sustainability (Switzerland) 12, 7 (2020), 2742 [11 pp.] ISSN: 2071-1050 Factor impacto JCR: 3.251 (2020) Categ. JCR: ENVIRONMENTAL SCIENCES rank: 124 / 273 = 0.454 (2020) - Q2 - T2 Categ. JCR: ENVIRONMENTAL STUDIES rank: 60 / 125 = 0.48 (2020) - Q2 - T2 Categ. JCR: GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY rank: 30 / 44 = 0.682 (2020) - Q3 - T3 Categ. JCR: GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY rank: 6 / 9 = 0.667 (2020) - Q3 - T3 Factor impacto SCIMAGO: 0.611 - Energy Engineering and Power Technology (Q1) - Environmental Science (miscellaneous) (Q1) - Renewable Energy, Sustainability and the Environment (Q1) - Management, Monitoring, Policy and Law (Q1) - Geography, Planning and Development (Q1)