The following is the list of squads that took part in the men's water polo tournament at the 1952 Summer Olympics.
CF=Centre forward
CB=Centre back
D=Defender
GK=Goalkeeper
Argentina
Argentina entered a squad of ten players. They scored six goals but only three scorers are known.
Head coach:
Australia
Australia entered a squad of ten players. They scored two goals but all scorers are unknown.
Head coach:
Austria
Austria entered a squad of eleven players. They scored fourteen goals but all scorers are unknown.
Head coach:
Belgium
Belgium entered an unknown number of players ten of them are known. They scored 27 goals but only two scorers are known.
Head coach:
Brazil
The following players represented Brazil.
Claudino Castro
Márvio dos Santos
Lucio Figueirêdo
João Havelange
Douglas Lima
Henrique Melmann
Edson Peri
Sérgio Rodrígues
Leo Rossi
Samuel Schemberg
Daniel Sili
Egypt
The following players represented Egypt.
Ahmed Fouad Nessim
Jack Hakim
Samir Gharbo
Taha El-Gamal
Omar Sabry
Abdel Aziz Khalifa
Abdel Aziz El-Shafei
Dorri Abdel Kader
Galal El-Din Abdel Meguid Abou El-Kheir
Salah El-Din El-Sahrawi
Germany
The following players represented Germany.
Günter Heine
Paul Uellendahl
Erich Sauermann
Wilfried Bode
Willi Sturm
Heinz Zander
Ferdinand Panke
Emil Bildstein
Philipp Dotzer
Great Britain
The following players represented Great Britain.
Ian Johnson
Charles Brand
Jack Jones
Gerry Worsell
Ron Turner
Terry Miller
Jack Fergusson
David Murray
Stan Hawkins
Hungary
Hungary entered a squad of 13 players. They scored 53 goals.
Head coach:
India
The following players represented India.
Birendra Basak
David Sopher
Kedar Shah
Isaac Mansoor
Sambhu Saha
Sachin Nag
Khamlillal Shah
Bijoy Barman
Jehangir Naegamwalla
Ran Chandnani
Italy
Italy entered a squad of eleven players. They scored 43 goals but all scorers are unknown.
Head coach: Giulio De Filippis and Mario Majoni
Mexico
The following players represented Mexico.
Juan Trejo
Arturo Coste
Manuel Castro
José Olguín
Otilio Olguín
Modesto Martínez
Netherlands
The Netherlands entered an unknown number of players only seven of them are known. They scored 43 goals only 38 scorers are unknown.
Head coach: Frans Kuyper
Portugal
Portugal entered a squad of ten players. They scored two goals but both are unknown.
Head coach:
Romania
The following players represented Romania.
Zoltan Norman
Atila Kelemen
Adalbert Iordache
Gavrila Törok
Zoltan Hospodar
Octavian Iosim
Francisc Şimon
Arcadie Sarcadi
South Africa
The following players represented South Africa.
William Aucamp
Ron Meredith
Gerald Goddard
Douglas Melville
Johnnie van Gent
Des Cohen
Solly Yach
Dennis Pappas
Soviet Union
The Soviet Union entered a squad of 13 players. They scored 38 goals but only four scorers are known.
Head coach: Vadim Kuznetsov and Ivan Dmitriev
Spain
The following players represented Spain.
Leandro Ribera Abad
Ricardo Conde
Josep Bazán
Roberto Queralt
Antonio Subirana
Agustín Mestres
Juan Abellán
Francisco Castillo
Sweden
The following players represented Sweden.
Rune Källqvist
Erik Holm
Roland Spångberg
Stig Johansson
Arne Jutner
Hans Hellbrand
Åke Julin
Bo Larsson
United States
The United States entered a squad of eleven players. They scored 35 goals but only 19 scorers are known.
Head coach: Urho Saari (coach); John Curran (manager)
Yugoslavia
Yugoslavia entered a squad of eleven players. They scored 44 goals but only four scorers are known.
Head coach: