{{Bio
|Nome = Alexander Murray "Alex"
|Cognome = Hannum
|Sesso = M
|LuogoNascita = Los Angeles
|GiornoMeseNascita = 19 luglio
|AnnoNascita = 1923
|LuogoMorte = San Diego
|GiornoMeseMorte = 18 gennaio
|AnnoMorte = 2002
|Attività = cestista
|Attività2 = allenatore di pallacanestro
|Nazionalità = statunitense
|PostNazionalità = . Attivo in ABA e in NBA, è entrato nella Basketball Hall of Fame
}}

È, insieme a Bill Sharman, l'unico ad aver vinto il titolo di campione sia in NBA che in ABA. Inoltre entrambi allenarono Wilt Chamberlain durante le loro stagioni vincenti.

==Carriera==
===Giocatore===
Dopo essersi laureato all'Baltimore Bullets, i Rochester Royals, i Milwaukee Hawks, i St. Louis Hawks e i Fort Wayne Pistons.

===Allenatore===
====NBA====
Hannum è molto conosciuto per la carriera di coachnei Philadelphia 76ers, quando con Chamberlain in squadra, vinse nella stagione 1966-1977 il campionato NBA, ponendo termine alla serie di successi dei Boston Celtics, durata 8 anni.

Hannum aveva allenato in precedenza anche i St. Louis Hawks durante gli anni in cui militava Bob Pettit e nel 1958 portò la squadra in finale proprio contro i Celtics, vincendola.
Hannum fu il primo coach ad affermarsi con due team differenti nel campionato di basket NBA, impresa riuscita solo a Phil Jackson e Pat Riley.

{{Infobox NBA Player
| name = Alex Hannum
| image = <!--  Commented out because image was deleted: thumb|right|Alex Hannum as a coach of Philadephia 76ers -->
| caption = 
| position = Forward
| nickname = 
| height_ft = 6
| height_in = 7
| weight_lb = 210
| team =
| nationality = USA
| birth_date = July 19, 1923 
| death_date = January 18, 2002 
| birth_place = Los Angeles
| college = USC
| highschool = Hamilton High School
| draft = BAA
| draft_year = 1948
| draft_team = Indianapolis Jets
| career_start = 1949
| career_end = 1957
| former_teams = Syracuse Nationals
| awards = 
}}

'''Alexander Murray Hannum''' (July 19, 1923 — January 18, 2002) was a professional basketball player and Hall-of-Fame coach. 

==Coaching career==
Hannum is mostly known for coaching the Bill Russell's 13-year career in which he did not win an NBA championship.  In 1964, Hannum was named NBA Coach of the Year while with the San Francisco Warriors.

In 1969, Hannum led the Oakland Oaks to an ABA title, becoming the first of two coaches to win championships in both the NBA and ABA. Hannum won the ABA Coach of the Year honors the same season.

Hannum was inducted into the Basketball Hall of Fame in 1998. Twelve Hall-of-Famers played for Hannum — in addition to Pettit, Chamberlain and Barry, he had also coached Cliff Hagan, Ed Macauley, Slater Martin, Dolph Schayes, Nate Thurmond, Billy Cunningham, Hal Greer, Elvin Hayes and Calvin Murphy.  Hannum, a native of Los Angeles, California, and graduate of the University of Southern California, died at the age of 78 in San Diego, California.

==Playing career==
Hannum played in the NBA between 1949 and 1957.

==College career==
Hannum played at USC.