|Date of birth||25 April 1938|
|Place of birth||Bucharest, Romania|
|Height||1.67 m (5 ft 6 in)|
|1980–1984||1860 München II|
|* Senior club appearances and goals counted for the domestic league only.
Born in Bucharest, Popescu started playing football for FC Rapid București. He joined Ştiinţa Cluj before moving to FC Dinamo București, where he would win three consecutive Romanian league championships with the club from 1963 to 1965. He also played for CS Jiul Petroşani before returning to FC Rapid București in 1968.
Following the end of his playing career, Popescu managed a few clubs in Romania and Turkey including Eskişehirspor, and the Romanian Olympic team before he moved to Germany where he studied at the Sports Academy of Cologne which is now called the Hennes Weisweiler Academy. He was appointed manager of TSV 1860 München Malatyaspor and Offenburger FV in 1991.
- "Die Teilnehmer des 30. Lehrgangs" (in German). DFB.de. Retrieved 11 February 2008.
- "International Development of Futnet between 1987 and 2011". Futnet.eu. Retrieved 2 March 2011.
- "Octavian Popescu acuza FRF ca ii ignora candidatura" (in Romanian). Gazeta Sportulor. 1 November 2005.
- "Football Match: Yugoslavia vs Romania". Eu-Football.info. Retrieved 16 March 2008.
- "Octavian 'Pope' Popescu Manager" (in Turkish). Mackolik.com. Retrieved 26 September 2010.
- "Von Dschungelkämpfern und Partylöwen" (in German). Merkur-Online.de. Retrieved 20 April 2009.
- "Futbol Tarihinden Bir Yaprak" (in Turkish). Malatyahaber.com. Retrieved 6 February 2011.
- "Vereinsgeschichte Offenburger FV" (PDF) (in German). Offenburgerfv.de. Retrieved 7 February 2011.
- "Octavian Popescu, al cincilea candidat la şefia FRF" (in Romanian). Mediafax.ro. Retrieved 3 February 2014.
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