|Full name||Dumitru Dumitriu|
|Date of birth||19 November 1945|
|Place of birth||Bucharest, Romania|
|Height||1.76 m (5 ft 9 in)|
|1965–1968||ASA Târgu Mureş12||22||(13)|
|1973–1974||Olimpia Satu Mare||25||(3)|
|1988–1990||Steaua Bucureşti (assistant)|
|1990–1991||Romania Olympic team|
|1991–1992||Dacia Unirea Brăila|
|1992–1993||Steaua Bucureşti (assistant)|
|2006–2008||Prefab Moldelu (technical director)|
|2010||Steaua II Bucureşti (technical director)|
|* Senior club appearances and goals counted for the domestic league only.
† Appearances (Goals).
Dumitru Dumitriu (born 19 November 1945 in Bucharest), commonly known as Țiți Dumitru or Dumitriu III, is a retired Romanian footballer and coach, who last managed Politehnica Iaşi. He being the younger brother of Emil Dumitriu (Dumitru II) and the elder brother of Constantin Dumitriu (Dumitriu IV).
He played as a youngster for Rapid Bucureşti before beginning his senior career at CS Târgovişte. After a year he moved to ASA Târgu Mureş, where he played for 4 years. In 1968, he signed with Steaua Bucureşti, where he played until 1972, when he returned to Rapid. He also played for Olimpia Satu Mare, FCM Galaţi and for ICSIM București. He won with Steaua Bucureşti the Romanian Championship three times.
He won a cap for the Romania national football team.
After he quit playing in 1977, he become quickly a player/manager for ICSIM București, amongst others in the beginning he managed lower league teams to gain more experience like Rapid Fetești, Autobuzul București, Steaua Mizil, and Rulmentul Bârlad.
The highlight of his career as a manager was with Steaua Bucureşti two times, qualifying the team for the UEFA Champions League and also winning Liga I in 1995, 1996, 1997 and 2005. Plus two Romanian Cup titles in 1996 and 1997, and a Romanian Supercup title in 1995.