Kōki Moriya (守屋 功輝, Moriya,Kōki, born November 25, 1993) is a Japanese Nippon Professional Baseball pitcher for the Hanshin Tigers in Japan's Central League.

Kōki started playing little league baseball for the Tamashima Minami Elementary School and his team won runner up in the Okayama Prefectural Tournament during his 5th grade.

[1] He initially started as an outfielder, but switched to a pitching role when he played for Kurosaki Junior High.

He spent his first 2 years mostly in the dug out due to injuries, but in the succeeding year, he came to the rescue as a reliever in a crucial match against JR Tokai and helped his team reach the final round of the 2014 Intercity Baseball Tournament.

[4] He was chosen as the Hanshin Tigers' 4th round pick in the 2014 Nippon Professional Baseball draft.