OBJECTIVES: To review, within the framework of the FP7 DALI (Vitamin D And Lifestyle Intervention for Gestational Diabetes Mellitus (GDM) Prevention) study, guidelines for the management of obese women during pregnancy across Europe to assess the specificity of the recommendations in this group at risk of adverse pregnancy outcomes. METHODS: To determine whether additional clinical tests, advice, planning, management or pregnancy follow-up were recommended for obese women during pregnancy,Clinical Practice Guidelines (CPGs) were collated from across the Endocrinology and Obstetrics National Societies websites of the 9 European countries participating  in the FP7 DALI study (Austria, Belgium, Denmark, Ireland, Italy, Netherlands, Poland, Spain, UK). This was complemented by a Medline search and a survey among the investigators of the DALI study. RESULTS: 15 CPG for 9 countries were retrieved. All but Spanish guidelines, which recommend O’Sullivan test, recommend OGTT 75g to detect GDM in obese women. Most of them include 24-28 weeks as the time for OGTT, but other schedules are also used, especially when risk factors other than obesity are present. Other common recommendations for obese women in European CPGs were diet advice (included in the guidelines of 6 different countries), special birth planning (5 countries), exercise and other lifestyle recommendations (4 countries) and vitamin D supplementation, multidisciplinary follow-up (including endocrinologist or diabetologist) and additional ultrasound scan (3 countries). CONCLUSIONS: Recommendations for obese women in the studied countries are heterogeneous and in many cases do not include actions beyond screening for GDM.  Existing guidelines will be reviewed in the light of the findings from the interventions studied in the framework of the DALI study.