The 2018 Thomas & Uber Cup (officially known as the 2018 BWF Thomas & Uber Cup) was the 30th edition of the Thomas Cup and the 27th edition of the Uber Cup, the biennial international badminton championship contested by the men and women's national teams of the member associations of Badminton World Federation (BWF). The tournament was hosted by Bangkok, Thailand 20–27 May 2018. Denmark were the defending men's champions, and China were the defending women's champions.