|Full name||Ionuţ Costinel Mazilu|
|Date of birth||9 February 1982|
|Place of birth||Bucharest, Romania|
|Height||1.80 m (5 ft 11 in)|
|Sportul Studenţesc ( Head coach )|
|2009–2011||→ Arsenal Kyiv (loan)||62||(20)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 2 March 2013.
‡ National team caps and goals correct as of 15 November 2011
Ionuţ Costinel Mazilu (born 9 February 1982 in Bucharest) is a former Romanian footballer, who currently is manager at Sportul Studenţesc. He is known in Romania for his sharp finishing, pace and technique.
Mazilu started his career at Sportul Studenţesc in 1999. In the 2005–06 season, he was the leading goalscorer in the Romanian Liga I scoring 22 goals. The following season, he was taken to FC Rapid Bucureşti, where he played for two years playing 34 games and scoring 18 goals. On 12 January 2008, Mazilu was transferred to the Ukrainian club Dnipro Dnipropetrovsk for a fee of €4 million, the highest fee received by a Romanian football club at that time. He failed to make an immediate impact. During his first year he only played eight games with a single goal scored. In 2009, he was loaned to FC Arsenal Kyiv after his transfer to CFR Cluj failed.
Mazilu is a regular member of the Romanian national football team since the 2004–05 season having played 12 matches and scored 3 goals.
- Romania's goal tally first.
|1.||28 February 2006||Neo GSZ Stadium, Nicosia, Cyprus||Slovenia||1–0||2–0||Friendly|
|2.||7 February 2007||Stadionul Lia Manoliu, Bucharest, Romania||Moldova||1–0||2–0||Friendly|
|3.||14 October 2009||Stadionul Ceahlăul, Piatra Neamţ, Romania||Faroe Islands||3–1||3–1||2010 FIFA World Cup Qualifying|
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