A TV advert shows “abusive” behaviour towards a woman, including being leered at and enduring sexist comments.
Social Justice Minister Carl Sargeant said while that could seem harmless to men, women can feel threatened.
Welsh Women’s Aid said tackling “widespread social attitudes” was crucial.
The advert shows a gang of men in a van sounding their horn and gesturing at the woman in the street, a male office colleague ogling her, and two strangers in a bar making suggestive remarks as she passes.
The video ends with her being followed down a dark street by another man, with the headline One Step Too Far.
The Welsh Assembly Government said the campaign aimed to “stamp out unacceptable attitudes and behaviour towards women before it leads to more violent forms of abuse”.
It said it did this by highlighting “how seemingly innocent actions may be a step too far and lead to women feeling unsafe”.
Click here to read the full BBC article and watch the video campaign.