The brand will remain Team GB’s official sportswear partner up to and including the 2024 Olympic Games.
The new deal will also see adidas continue to be an official team GB licensee, producing replica and official supporter apparel, accessories and footwear.
Beginning in 1984, it’s the British Olympic Association’s longest domestic partnership.
BOA chairman Lord Coe says: “The BOA is incredibly proud to have such a long standing partnership with adidas.
“To have them as part of Team GB looking ahead to PyeongChang 2018, Tokyo 2020 and beyond is vital for our continued Olympic sporting success.
“Los Angeles 1984 holds such fond memories for me as an athlete and knowing that adidas have been with Team GB on the journey since those Games shows the strength of the relationship between our two organisations.”