PURPOSE: To compare attitudes towards gamete donation between IVF doctors in the Nordic countries, and to determine whether attitudes are in correspondence with national legislation. MATERIALS AND METHODS: A study-specific questionnaire was used to study attitudes of 108 IVF doctors (92% response). Participants constituted 78% of all IVF doctors in Sweden, Denmark and Norway and 15% of IVF doctors in Finland. RESULTS: Despite similar legislation regarding offspring right to learn his/her donor's identity, IVF doctors from Norway reported significantly more negative attitudes towards disclosure than did Swedish physicians. A majority from all countries demonstrated positive attitudes towards embryo donation and allowing sperm donation for lesbian couples. Physicians reported strong support for anonymous donation but less support for 'known' donation. CONCLUSION: There are discrepancies between IVF doctors' attitudes towards gamete donation and national legislation in four Nordic countries. Negative attitudes towards disclosure to offspring may counteract legislative intentions.