Water polo at the 1984 Summer Olympics – Men's team squads
The following are complete rosters for the twelve men's water polo teams that competed in the 1984 Summer Olympics water polo tournament played in August 1984. Each team registered 13 players which are ordered by their respective team numbers. Players marked with † were unused throughout the tournament. Names of coaches are taken from the official Olympics report. Player ages are correct as of 1 August 1984, the starting day of the tournament.
Group A
Canada
The following players represented Canada:Head coach: Gabor Csepregi
| No. | Name | Height | Weight | Date of birth | 1984 club | ||
| 7 | 0 | ||||||
| 10 | |||||||
| 11 | |||||||
| 12 | |||||||
| 13 |
China
The following players represented China:Head coach: Pens
| No. | Name | Height | Weight | Date of birth | 1984 club | ||
| 7 | 0 | ||||||
| 7 | 15 | ||||||
| 7 | 1 | ||||||
| 7 | 5 | ||||||
| 7 | 8 | ||||||
| 7 | 1 | ||||||
| 7 | 5 | ||||||
| 7 | 7 | ||||||
| 7 | 0 | ||||||
| 10 | 7 | 5 | |||||
| 11 | 7 | 1 | |||||
| 12 | 7 | 11 | |||||
| 13 | † | 0 | 0 |
Netherlands
The following players represented the Netherlands:Head coach: Dénes Pócsik
| No. | Name | Height | Weight | Date of birth | 1984 club | ||
 De Robben | |||||||
| 10 | |||||||
| 11 | |||||||
| 12 | |||||||
| 13 |
Yugoslavia
The following players represented Yugoslavia:Head coach: Ratko Rudić
| No. | Name | Height | Weight | Date of birth | 1984 club | ||
| 7 | 0 |  Primorac | |||||
| 7 | 7 | POŠK | |||||
| 7 | 0 | Partizan | |||||
| 7 | 5 | Jug | |||||
| 7 | 8 | Jug | |||||
| 7 | 7 | Primorje | |||||
| 7 | 16 | Jug | |||||
| 7 | 0 | Solaris | |||||
| 7 | 6 | Jug | |||||
| 10 | 7 | 11 | Mladost | ||||
| 11 | 7 | 6 | Partizan | ||||
| 12 | 7 | 6 | Partizan | ||||
| 13 | 1 | 0 | Primorac |
Group B
Brazil
The following players represented Brazil:Head coach: Carvalho
| No. | Name | Height | Weight | Date of birth | 1984 club | ||
| 10 | |||||||
| 11 | |||||||
| 12 | |||||||
| 13 |
Greece
The following players represented Greece:Head coach: Zographos
| No. | Name | Height | Weight | Date of birth | 1984 club | ||
| 10 10 1960 |  Vouliagmeni | ||||||
| 10 | |||||||
| 11 | |||||||
| 12 | |||||||
| 13 |
Spain
The following players represented Spain:Head coach: Pujol
| No. | Name | Height | Weight | Date of birth | 1984 club | ||
| 2 8 1962 |  Barcelona | ||||||
| 10 | |||||||
| 11 | |||||||
| 12 | |||||||
| 13 |
United States
The following players represented the United States:Head coach: Monte Nitzkowski
| No. | Name | Height | Weight | Date of birth | 1984 club | ||
| 7 | 0 | 5 2 1957 | |||||
| 7 | 13 | 2 2 1959 |  California Golden Bears | ||||
| 7 | 8 | 28 9 1956 | Newport Water Polo Foundation | ||||
| 7 | 4 | 21 5 1960 | |||||
| 7 | 3 | 30 3 1957 | |||||
| 7 | 5 | 4 10 1955 | Newport Water Polo Foundation | ||||
| 7 | 1 | 26 10 1953 | Concord Aquatic Club | ||||
| 7 | 3 | 7 10 1952 | |||||
| 7 | 4 | 19 10 1955 | |||||
| 10 | 7 | 13 | 9 10 1958 | ||||
| 11 | 7 | 10 | 4 3 1960 | ||||
| 12 | 7 | 1 | 8 11 1957 | Cal State Long Beach | |||
| 13 | 1 | 0 | 5 6 1956 |
Group C
Australia
The following players represented Australia:Head coach: Tom Hoad
| No. | Name | Height | Weight | Date of birth | 1984 club | ||
 Cronulla Sutherland Water Polo Club | |||||||
| 10 | |||||||
| 11 | |||||||
| 12 | |||||||
| 13 |
Italy
The following players represented Italy:Head coach: Fritz Dennerlein
| No. | Name | Height | Weight | Date of birth | 1984 club | ||
| 7 | 0 |  Bogliasco | |||||
| 7 | 5 | ||||||
| 7 | 2 | Savona | |||||
| 7 | 7 | ||||||
| 7 | 19 | ||||||
| 7 | 11 | Florentia | |||||
| 7 | 6 | Pro Recco | |||||
| 7 | 5 | Pro Recco | |||||
| 7 | 8 | Pro Recco | |||||
| 10 | 7 | 6 | Napoli | ||||
| 11 | 7 | 1 | Bogliasco | ||||
| 12 | 7 | 5 | Posillipo | ||||
| 13 | † | 0 | 0 | Florentia |
Japan
The following players represented Japan:Head coach: Kiyohara
| No. | Name | Height | Weight | Date of birth | 1984 club | ||
| 10 | |||||||
| 11 | |||||||
| 12 | |||||||
| 13 |
West Germany
The following players represented West Germany:Head coach: Nico Firoiu
| No. | Name | Height | Weight | Date of birth | 1984 club | ||
| 7 | 0 |  Wasserfreunde Spandau 04 | |||||
| 7 | 12 | Wasserfreunde Spandau 04 | |||||
| 7 | 18 | SV Cannstatt | |||||
| 7 | 2 | DSV 98 | |||||
| 7 | 6 | Wasserfreunde Spandau 04 | |||||
| 7 | 0 | ASC Duisburg | |||||
| 7 | 1 | Rote Erde | |||||
| 7 | 6 | ASC Duisburg | |||||
| 7 | 15 | Wasserfreunde Spandau 04 | |||||
| 10 | 7 | 6 | Aegir Uerdingen | ||||
| 11 | 7 | 3 | Wasserfreunde Spandau 04 | ||||
| 12 | † | 0 | 0 |  Duisburger SV 98 | |||
| 13 | 7 | 5 | DSV 98 |