To date, the majority of research on attractiveness judgements has focused on identifying factors that influence judgements of facial attractiveness.  This thesis reports a series of empirical studies that investigated the extent to which factors that are known to influence women’s preferences for masculine characteristics in men’s faces (e.g., measures of women’s attractiveness and personality traits attributed to masculine men) also influence women’s preferences for masculine characteristics in men’s voices.  These studies suggest that own attractiveness and perceptions of personality traits have similar effects on women’s face and voice preferences.  Additionally, further studies demonstrated that vocal cues signal information about women’s long term health and facial attractiveness and suggested that women’s masculinity preferences are affected by their circum-menopausal status (pre-menopausal versus post-menopausal).  Collectively, these findings present new evidence for the utility of deriving predictions about attractiveness judgements from evolutionary theories of mate choice.