Ayuko Ito(伊藤 亜由子,Itō Ayuko?, born (1986-09-29)September 29, 1986 in Hamamatsu) is a Japanese short-track speed-skater.
Ito competed at the 2010 Winter Olympics for Japan. She finished third in her opening round race of the 1000 metres, failing to advance and placing 18th. She was also a member of the 3000 metre relay team, which finished third in the semifinals and fourth in the B Final, ending up seventh overall.
As of 2013, Ito has won one bronze medal at the World Championships, as a member of the Japanese relay team in 2013. Her best individual result is 9th, in the 2012 1500 metres.
As of 2013, Ito has ten ISU Short Track Speed Skating World Cup podium finishes, all as part of the Japanese relay team. Her best result is a silver medal, achieved three times. Her best World Cup ranking is eighth, in the 1000 metres in 2011–12.