Eating disorders (EDs) are estimated to affect 5.2%-7.5% of pregnant women, equating to 15,800-23,000 births in Australia annually. In pregnancy, an ED increases the risk of complications for both mother and child. Heightened motivation and increased utilisation of healthcare services during pregnancy present an opportunity to identify and commence ED treatment. Dietetic management of EDs differs from nutrition guidelines for pregnancy. This study aimed to assess current practice, confidence and training needs of dietitians to manage EDs in pregnancy. A cross-sectional survey of Australian dietitians with past year exposure to ED and/or antenatal fields was completed using Microsoft Forms between November 2022 and January 2023. One hundred and seventeen responses were analysed. Confidence was less for assessment of a woman with an active ED in pregnancy than a pregnant woman with a history of an ED, pregnancy or an ED alone (p < 0.001). Greater than 5 years of experience as a dietitian, but without recent exposure to the patient population, was associated with increased confidence (p < 0.01). Almost half provided descriptions of treatments and interventions used to treat a pregnant woman with an ED, some of which conflict with ED or antenatal guidelines. Dietitians were more likely to weigh a person with an ED in pregnancy. Most respondents indicated further training (93%) and guidelines (98%) would be helpful. This is the first investigation into the dietetic management of EDs in pregnancy, and it highlights a need for guidelines and training for dietitians.