Jadir Morgenstern (born 29 May 1974),^[1] or simply Jadir (Arabic: جادير), is a football manager and former player who is the manager of Brazilian club Toledo U19.

Born in Brazil, Jadir is of Lebanese descent;^[2] he represented Lebanon internationally at the 2000 AFC Asian Cup as a centre-back.

Jadir started his professional career at Toledo, being sold to Atlético Paranaense for the 1993 Campeonato Brasileiro Série A in which his team was relegated. After spending another year at Furacão, he spent the next years being loaned to lower clubs. In 1996, he won the Campeonato Mato-Grossense with Mixto, playing in the final.^[3] In 1998, playing for Tubarão, he won the Copa Santa Catarina.^[4]

In 2000, he moved to Lebanese club Al-Ansar, later being naturalized and making his debut for Lebanon later in the year. He spent the rest of his career at the Asian country, except for a brief spell at Juventude-MT, playing also for Hekmeh FC and Akhaa Ahli Aley before ending his career at Al-Ansar.

Jadir represented Lebanon at the 2000 AFC Asian Cup and the World Cup 2002 Qualifying.

Jadir coaches the Toledo under-19 team, a position he holds since 2014.^[5][6]

Jadir's brother, Jorge, was also a professional footballer having played most for Paraná-based clubs.^[7] Jadir has a son, Adriel, who also plays football.^[8]

• List of Lebanon international footballers born outside Lebanon
• List of association football families