| Competition: | Men's World Cup |
| Continent: | World |
| Year: | 2003 |
| Dates: | 16–30 November |
| Teams: | 12 |
| Confederations: | 5 |
| Venues: | 7 |
| Cities: | 6 |
| Champions: | BRA |
| Title Number: | 1 |
| Second: | ITA |
| Third: | SCG |
| Fourth: | USA |
| Mvp: |  Takahiro Yamamoto |
| Website: | 2003 FIVB World Cup |
| Last: | 1999 FIVB Volleyball Men's World Cup |
| Next: | 2007 FIVB Volleyball Men's World Cup |
The 2003 FIVB Men's World Cup was held from 16 to 29 November 2003 in Japan. Twelve men's national teams played in cities all over Japan for the right to a fast lane ticket into the 2004 Summer Olympics in Athens, Greece.
Teams were made up as follows: hosts Japan, continental champions and vice-champions from Europe, Asia, NORCECA and South America, continental champion from Africa plus two wild-card teams nominated jointly by FIVB and the Japan Volleyball Association. Teams played a single-round robin format (66 games overall), in two parallel groups (site A and site B). The men played in Tokyo, Hiroshima, Fukuoka, Nagano, Hamamatsu, and Okayama.
| Means of qualification | Date | Host | Vacancies | Qualified | |
|---|---|---|---|---|---|
| Host Country | — | ― | 1 | ||
| 2003 Men's European Volleyball Championship | 5–14 September 2003 | 2 | |||
| 2003 Men's NORCECA Volleyball Championship | 25–30 September 2003 |  Culiacán | 2 | ||
| 2003 Men's South American Volleyball Championship | 2–6 September 2003 |  Rio de Janeiro | 2 | ||
| 2003 Asian Men's Volleyball Championship | 5–12 September 2003 |  Tianjin | 2 | ||
| 2003 Men's African Volleyball Championship | 1–6 August 2003 |  Cairo | 1 | ||
| Wild Cards | ― | ― | 2 | ||
| Total | 12 | ||||
See main article: 2003 FIVB Volleyball Men's World Cup squads.
Venue: Yoyogi National Gymnasium, Tokyo
Venue: White Ring, Nagano
Venue: Hiroshima Green Arena, Hiroshima
Venue: Hamamatsu Arena, Hamamatsu
Venue: Marine Messe, Fukuoka
Venue: Okayama General and Cultural Gymnasium, Okayama
Venue: Yoyogi National Gymnasium, Tokyo
Venue: Tokyo Metropolitan Gymnasium, Tokyo
| Rank | Team | |
|---|---|---|
| align=center | ||
| align=center | ||
| align=center | ||
| align=center | 4 | |
| align=center | 5 | |
| align=center | 6 | |
| align=center | 7 | |
| align=center | 8 | |
| align=center | 9 | |
| align=center | 10 | |
| align=center | 11 | |
| align=center | 12 | |
| width=10px bgcolor=#ccffcc | Qualified for the 2004 Summer Olympics |
| Team roster |
| Giovane, André Heller, Maurício, Giba, André, Sérgio, Anderson, Nalbert (c), Gustavo, Rodrigão, Ricardo, Dante |
| Head coach |
| Bernardinho |
