Ryo Kato (Japanese: 加藤亮; born 20 August 1991) is a Japanese footballer who plays as a defender or midfielder for Prey Veng in the Cambodian Premier League.
In 2014, Kato signed for German fifth division side Sportfreunde Siegen from Fontana Finthen in the German sixth division.
Before the second half of 2015/16, he signed for Montenegrin club Titograd, helping them win the league.
In 2018, Kato signed for German fifth division team Basara Mainz.
This biographical article related to Japanese association football is a stub.