Abstract A new distribution map is provided for Aphanomyces euteiches Drechsler. Oomycetes: Saprolegniales: Leptolegniaceae. Hosts: many legumes, but especially pea ( Pisum sativum ), bean ( Phaseolus vulgaris ) and lucerne ( Medicago sativa ). Information is given on the geographical distribution in Europe (Czech Republic, Denmark, Finland, France, Italy, Netherlands, Norway, Poland, Russia, Spain, Sweden, UK, England and Wales, Scotland and Ukraine), Asia (China, Gansu, India, Madhya Pradesh, Japan and Nepal), North America (Canada, Alberta, Manitoba, Ontario, Quebec, Saskatchewan, Mexico, USA, Alabama, California, Colorado, Connecticut, Delaware, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Montana, Nebraska, New Jersey, New York, North Carolina, North Dakota, Oregon, Pennsylvania, South Dakota, Utah, Virginia, Washington and Wisconsin), Central America and Caribbean (Jamaica) and Oceania (Australia, New South Wales, Queensland, South Australia, Tasmania, Victoria and New Zealand).