As part of the shift to a more positive psychology, researchers have demonstrated a relatively new and intense fascination with humility. Following a discussion of this construct and its correlates, we investigate how humility relates to personality dimensions, anxiety and depression, love of life and happiness, and self-efficacy in two samples—college students and adult Mturk workers. In both studies, we used the Dual Dimension Humility Scale, a measure that does not conflate the construct with honesty. Among students ( N = 399), aspects humility correlated with dimensions of personality (more conscientiousness and openness, and less agreeableness and neuroticism), less depression, more love of life and happiness, and stronger social self-efficacy. Although fewer associations were found, overall, among adults ( N = 509), aspects of humility correlated with dimensions of personality, less anxiety, and some dimensions of psychological well-being. The most unique contributions of this study include linking humility with college students’ love of life and self-efficacy, and with adults’ well-being. We conclude with a discussion of ideas for future research and potential applications to boost humility.