Miyako Sumiyoshi

was a Japanese speed skater. She competed at the 2013 World Sprint Championships in Salt Lake City, where she placed thirteenth. She also placed thirteenth in the sprint combination at the 2014 World Sprint Championships in Nagano.
Sumiyoshi competed at the 2014 Winter Olympics in Sochi, in the 500 meters (14th) and in the 1000 meters (22nd).
On 20 January 2018, she was found dead in her home in Nagano at the age of 30.