Kei Takase is a Japanese sprinter. He competed in 200 metres at the 2012 Summer Olympics in London, and was part of the Japanese 4 × 400 m team. He also competed in the 2013 World Championships in Athletics, held in Moscow. More recently he took part in 100 metres races in various meetings, clocking 10.09 into a slight headwind in Kawasaki in May 2015, performing well enough to represent Japan in the 100 m at the 2015 World Championships as well as in the 200 m. He competed at the 2016 Olympics in the 200 m, only.