He has a Nigerian passport, which was granted to him in June 2013, so that he could gain a visa, and be allowed to legally enter into the United States.

[7] On 18 October, he made his debut for the club's reserve team in the Liga EBA, recording 28 points and six rebounds, shooting 6-of-9 from three-point range, in an 83–69 win over SCD Carolinas.

[12] On 31 August 2023, Antetokounmpo signed with the Milwaukee Bucks, but was waived the same day[13] and on 30 October, he rejoined Wisconsin.

[17] In August 2024, Antetokounmpo signed with Podgorica of the Prva A Liga and the ABA League 2,[18] eventually playing only five games for the Montenegrin club.

[20] Three of his older brothers, Giannis, Thanasis and Kostas, play basketball professionally, and all three have won NBA championships.

[21] In September 2021, Alex along with his mother were granted honorary Greek citizenship from the Prime Minister of Greece, Kyriakos Mitsotakis.

[22] Alex, along with hockey player Filip Forsberg and three of his older brothers, Giannis, Thanasis and Kostas, were announced as joining the Nashville SC ownership group in the MLS.