Dimitrios Matthaiopoulos (, 1861–1923) was a senior Greek Army officer who participated in the Balkan Wars of 1912–1913. He was born in Piraeus in 1861, entered the Greek Army Academy and was commissioned as an Engineer officer on 24 March 1881. He participated in the Greco-Turkish War of 1897, taught at the Army Academy and published numerous books and studies on military engineering. In 1911–1912, as Colonel, he supervised the construction of fortifications around Larissa.