Joan Noureddine Oumari (Arabic: جوان نور الدين العمري, Lebanese Arabic pronunciation: [lˈʕomari, -re]; born 19 August 1988) is a Lebanese professional footballer who plays as a centre-back for Japanese club FC Tokyo and the Lebanon national team. Mainly deployed as a center-back, Oumari's main strengths lie in his physical attributes and leadership.
After playing for eight seasons in Germany, between the fifth and second division, Oumari moved to Turkish side Sivasspor in 2016. In 2017, he signed for UAE Pro-League club Al-Nasr, before moving on a six-month loan to Japanese side Sagan Tosu the following season. After returning to Al-Nasr for one year, Oumari moved back to Japan, playing for Vissel Kobe in 2019, and FC Tokyo since 2020.
Born in Germany, Oumari has represented Lebanon internationally since 2013. He has played at the 2019 AFC Asian Cup, in Lebanon's first participation in the competition through qualification.