The aim of this study was to examine age and sex differences in 6 dimensions of social anxiety in a sample of 16,940 people over the age of 16 in 18 countries in Ibero-America. Participants completed the «Social Anxiety Questionnaire for Adults»(SAQ-A), which includes the following dimensions: 1. Awkward behavior in socially embarrassing situations; 2. Interactions with the opposite sex; 3. Interactions with strangers; 4. Criticism and embarrassment; 5. Assertive expression of annoyance, disgust or displeasure; and 6