Deni Avdija (Hebrew: דני אבדיה, Serbian Cyrillic: Дени Авдија; born 3 January 2001) is an Israeli-Serbian professional basketball player for the Washington Wizards of the National Basketball Association (NBA). He plays the small forward position.
The son of basketball player Zufer Avdija, he started playing basketball in fourth grade for the club Bnei Herzeliya his hometown and then he joined Maccabi Tel Aviv in 2013 and excelled as a youth player. He debuted for their senior team in 2017, at age 16, becoming the youngest player in club history. Two years later, he became the youngest player to ever win the Israeli Basketball Premier League MVP award, and led his team to the Israeli Basketball Premier League championship.
Avdija is also a member of the Israeli senior national basketball team. He has won two gold medals for Israel at the youth level, including at the 2019 FIBA U20 European Championship, where he was named tournament MVP.
He played association football until he entered fourth grade, when he began focusing on basketball. In 2013, he joined the youth ranks of Maccabi Tel Aviv, where he played under the coach Shai Omer. From 2017 to 2019, Avdija led Maccabi Tel Aviv to three consecutive Israeli youth state championships. In August 2018, he participated in Basketball Without Borders Europe in Belgrade, where he was named camp MVP.