Dimitrios Deligiannis (Greek: Δημήτριος Δεληγιάννης, born 1873, date of death unknown) was a Greek runner. He competed at the 1896 Summer Olympics in Athens. He was born in Stemnitsa, Gortynia.^[1]

Deligiannis was one of 17 athletes to start the marathon race. He finished sixth of the nine athletes to have completed the race.