The 1966 Uber Cup () was the fourth edition of the Uber Cup, the women's badminton team competition. The tournament took place in the 1965-66 badminton season, 17 countries competed. Japan won its first title in the Uber Cup, after beating defending champions United States in the Challenge Round.
Four teams qualified for the interzone stage of the competition, Indonesia, Japan, Canada and England. The United States were exempted until the challenge round.
The following four teams, shown by region, qualified for the 1966 Uber Cup. In the first round, England defeated Canada 6âÂÂ1 while Indonesia suffered an upset, losing 2âÂÂ5 to debutants Japan. England later met the same fate as Indonesia when the team lost 4âÂÂ3 to Japan. The United States and Japan contested for the title in the final. 7 matches were played: 3 singles and 4 doubles (2 doubles, then reversed). The United States could not retain their title as the team lost 5âÂÂ2 to Japan in the final. This marked Japan's first title in the Uber Cup.