|Full name||Alen Petrović|
|Date of birth||5 November 1969|
|Height||1.86 m (6 ft 1 in)|
|* Senior club appearances and goals counted for the domestic league only.
He spent most of his career in Croatia's Prva HNL top level league, with the exception of two season-long stints at Portuguese side C.F. Os Belenenses and Germany's VfL Bochum. His professional debut came in the 1989–90 Yugoslav First League for the Croatian side NK Osijek, where he immediately established himself as a regular member of the starting eleven. After spending five seasons with Osijek and a stint at Belenenses in Portugal he was picked up by the Croatian powerhouse NK Dinamo Zagreb (at the time known as "Croatia Zagreb") in 1995.
His time at Croatia proved to be very successful as the squad won three consecutive domestic Doubles between 1996 and 1998 and reached the 1997–98 UEFA Cup Round of 16 in which they were knocked out by Atlético Madrid 2–1 on aggregate. In 1998, he tried his luck abroad once again and spent a season with VfL Bochum in Germany but he never managed to break into the first team – he appeared in only seven games for Bochum in the 1998–99 Bundesliga before the club was relegated from top level at the end of season. He then returned to Croatia and had stints with NK Osijek, NK Slaven Belupo and NK Marsonia before retirement.
|Portugal||League||Taça de Portugal||Total|
|1995–96||Croatia Zagreb||Prva HNL||24||3|
|1999–00||Slaven Belupo||Prva HNL||12||1|
- "Alen Petrović" (in German). fussballdaten.de. Retrieved 8 April 2011.
- "Petrović, Alen" (in German). kicker. Retrieved 8 April 2011.
- "Osijek: Ustoličeni Mile Dumančić i Alen Petrović". Nogometni-magazin.com (in Croatian). 28 June 2005. Retrieved 12 April 2011.
- "Alen Petrović napustio klub". NK-Osijek.hr (in Croatian). NK Osijek. 27 August 2009. Archived from the original on 5 October 2011. Retrieved 12 April 2011.