Joan Oumari (Arabic: جوان العمري; born 19 August 1988) is a Lebanese professional footballer who plays as a defender for Japanese club Vissel Kobe 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, moving to Vissel Kobe.
Born in Berlin to Lebanese parents, his career began at NFC Rot-Weiß Berlin. After a few years in the youth department, the defensive player moved to the youth section of Reinickendorfer Fuchse. There, he made the leap to the first team during the 2006–07 season, which was playing in the fifth division (Verbandsliga Berlin). Oumari played 22 league games that season, scoring one goal and finished in third place. The following season, Oumari established himself as a regular player of Reinickendorfer Fuchse, playing 31 of 33 league games and scoring five goals. At the end of the season, his team came first in the league with the fewest goals conceded.