Masatsugu Ono (?? ??, Ono Masatsugu, born 1970) is a Japanese writer.
He resides in Oita Prefecture and is associate professor at the Rikkyo University.
He was awarded the 152nd Akutagawa Prize (for 2014, presented in 2015), for the novel 9 Nen Mae no Inori ("A Prayer Nine Years Ago").