Jérome Polenz (born 7 November 1986) is a German retired professional footballer who mostly played as a defender.

[12] In a follow–up match, Polenz made his first start for Alemannia Aachen, playing in the defensive midfield position, as the club drew 2–2 against Carl Zeiss Jena.

[33] Polenz did not return to the first team until on 14 December 2008 against FC Augsburg, coming on as an 82nd-minute substitute, as Alemannia Aachen lost 3–1.

[36] After serving a two match suspension, he returned to the first team against MSV Duisburg on 2 March 2009, coming on as a 60th-minute substitute, in a 2–1 loss.

At the start of the 2009–10 season, however, Polenz suffered a posterior cruciate ligament injury in his right knee in a 4–2 loss against Hearts in a friendly match.

[81][82] On 21 August 2012, Polenz signed a contract to be an inaugural squad member of Western Sydney Wanderers of Australia.

[83] He explained joining the club after watching his friend Thomas Broich's documentary called Tom Meets Zizou.

[84] Western Sydney Wanderers made their debut in a 0–0 draw against Central Coast Mariners, where Polenz played in the right-back position on 6 October 2012.

[89] Polenz then contributed an assist for Mark Bridge to score an equaliser as Western Sydney Wanderers beat Brisbane Roar 2–1 on 20 January 2013.

[91] After serving a one match suspension, Polenz returned to the starting line–up against Newcastle Jets on 9 February 2013 and set up Western Sydney Wanderers' second goal of the game, in a 2–1 win.

[97][98][99] In the Grand Final against Central Coast Mariners, he returned to the starting line–up and played 76 minutes before being substituted, as the club lost 2–0.

[101] Polenz scored his first ever senior goal in the Western Sydney Wanderers one all draw with Wellington Phoenix in round 2 of the 2013–14 season.

[109][110][111] He then made his AFC Champions League debut, playing the whole game, in a 3–1 loss against Ulsan Hyundai on 26 February 2014.

[112] A month later on 23 March 2014, Polenz scored his second goal for Western Sydney Wanderers, in a 3–0 win against Perth Glory.

[114][115][116] Despite being sidelined on three occasions later in the 2013–14 season, Polenz went on to make twenty-five appearances and scoring two times in all competitions.

[125][126][127] At the opening of the A-League transfer window in 2015, Polenz was signed by Brisbane Roar as their last foreign player.

"[4] In March 2020, Eintracht Frankfurt appointed Polenz and his former teammate Thomas Broich as their U15 coach, effectively starting from 1 July 2020.

[144] He played a part in the 2005 UEFA European Under-19 Championship in the group stage against Serbia and Montenegro coming on as a substitute in the 78th minute replacing Markus Heppke.

[145][146] However, Polenz was unable to take part in the remaining fixtures of the group stage and the semi-final against France due to an injury and returned to Germany prior to the match alongside Sascha Dum and Markus Steinhöfer who were also injured.