|Date of birth||3 June 1939|
|Place of birth||Bucharest, Romania|
|Date of death||12 September 2012(aged 73)|
|Place of death||Bucharest, Romania|
|Height||1.70 m (5 ft 7 in)|
|1959–1961||Dinamo Obor București[a]||8||(3)|
|*Club domestic league appearances and goals, correct as of 24 January 2020|
Constantin Ștefan was born on 3 June 1939 in Bucharest, Romania. He started his career playing at the junior squads of Voința București in 1953, starting his senior career in 1957 by playing two years at CPCS București in Divizia B and Divizia C. Afterwards, he went to play for Divizia B team, Dinamo Obor București for two seasons and a half, reaching the 1960 Cupa României Final which was lost with 2–0 in front of Progresul București. He made his Divizia A debut on 11 November 1961, playing for Dinamo București in a 4–1 away victory against Progresul, making a total of 16 appearances during his first season, as the club won the Divizia A title. In the following three seasons Ștefan helped the club win three more titles, in the first he played 25 games, in the second he made 19 appearances and in the last one he played in 22 matches. He also won two Cupa României and won another Divizia A title in the last season of his career in which he made 8 appearances, his last taking place on 20 June 1971 in a 2–2 against Universitatea Cluj. Ștefan played a total of 189 Divizia A matches and 11 games in European competitions, all for Dinamo București. Constantin Ștefan died on 12 September 2012 at age 73 in Bucharest.
Dinamo Obor București
- Constantin Ștefan at RomanianSoccer.ro (in Romanian) and StatisticsFootball.com
- "Fostul fotbalist dinamovist Constantin Ștefan a decedat!" [Dinamo's former footballer Constantin Stefan has died!] (in Romanian). Prosport.ro. 12 September 2012. Retrieved 24 January 2020.
- Constantin Ștefan at WorldFootball.net
- "Romanian Cup – Season 1959–1960". RomanianSoccer. Retrieved 24 January 2020.