The following is the list of squads that took part in the men's water polo tournament at the 1968 Summer Olympics.

Brazil The following players represented Brazil:

Ivo Carotini Marc de Vicoso Henrique Filellini João Gonçalves Filho Cláudio Lima Aluísio Marsili Arnaldo Marsili Pedro Pinciroli Júnior Alvaro Pires Fernando Sandoval

Cuba The following players represented Cuba:

Oscar Periche Waldimiro Arcos Miguel García Rolando Valdés Rubén Junco Guillermo Martínez Ginoris Chepe Rodríguez Osvaldo García Roberto Rodríguez Guillermo Cañete Jesús Pérez

East Germany The following players represented East Germany:

Hans-Georg Fehn Klaus Schlenkrich Jürgen Thiel Siegfried Ballerstedt Peter Rund Hans-Jürgen Schüler Jürgen Kluge Veit Herrmanns Manfred Herzog Hans-Ulrich Lange Peter Schmidt

Egypt The following players represented Egypt:

Mohamed Abid Soliman Salah El-Din Shalabi Mohamed El-Bassiouni Sameh Soliman Galal Touny Adel El-Moalem Alaa El-Din El-Shafei Khaled El-Kashef Hossam El-Baroudi Haroun Touny Ashraf Gamil

Greece The following players represented Greece:

Ioannis Thymaras Georgios Theodorakopoulos Kyriakos Iosifidis Andreas Garyfallos Dimitrios Kougevetopoulos Panagiotis Mathioudakis Ioannis Palios Georgios Palikaris Nikolaos Tsangas Thomas Karalogos Panagiotis Mikhalos

Hungary The following players represented Hungary:

Endre Molnár Mihály Mayer István Szivós Jr. János Konrád László Sárosi László Felkai Ferenc Konrád Dénes Pócsik András Bodnár Zoltán Dömötör János Steinmetz

Italy The following players represented Italy:

Alberto Alberani Samaritani Eraldo Pizzo Mario Cevasco Gianni Lonzi Enzo Barlocco Franco Lavoratori Gianni De Magistris Alessandro Ghibellini Giancarlo Guerrini Paolo Ferrando Eugenio Merello

Japan The following players represented Japan:

Tetsunosuke Ishii Hirokatsu Kuwayama Koji Nakano Shuzo Yajima Shigeharu Kuwabara Haruo Sato Kazuya Takeuchi Kunio Yonehara Seiya Sakamoto

Mexico The following players represented Mexico:

Oscar Familiar Rolando Chávez Francisco García Germán Chávez Carlos Morfín Luis Guzmán Virgilio Botella Juan Manuel García José Luis Vásquez Sergio Ramos Daniel Gómez

Netherlands The following players represented the Netherlands:

Feike de Vries Hans Wouda Loet Geutjes Hans Hoogveld Fred van Dorp Hans Parrel Nico van der Voet Ad Moolhuijzen Bart Bongers André Hermsen Evert Kroon

Soviet Union The following players represented the Soviet Union:

Vadim Gulyayev Givi Chikvanaia Boris Grishin Aleksandr Dolgushin Oleksiy Barkalov Yury Grigorovsky Vladimir Semyonov Aleksandr Shidlovsky Vyacheslav Skok Leonid Osipov Oleg Bovin

Spain The following players represented Spain:

Luis Bestit Jorge Borell Juan Rubio José Padrós Agustín Codera Fermín Más Lolo Ibern Santiago Zubicoa Luis Meya Juan Jané Vicente Brugat

United States The following players represented the United States:

Tony van Dorp Dave Ashleigh Russ Webb Ron Crawford Stan Cole Bruce Bradley Dean Willeford Barry Weitzenberg Gary Sheerer John Parker Steve Barnett

West Germany The following players represented West Germany:

Hans Hoffmeister Hermann Haverkamp Peter Teicher Lajos Nagy Wolf-Rüdiger Schulz Ludger Weeke Dietmar Seiz Kurt Schuhmann Heinz Kleimeier Ludwig Ott Günter Kilian

Yugoslavia The following players represented Yugoslavia:

Ivo Trumbić Karlo Stipanić Ozren Bonačić Zoran Janković Uroš Marović Ronald Lopatni Miroslav Poljak Dejan Dabović Đorđe Perišić Mirko Sandić Zdravko Hebel

References