This is a list of the players who were on the rosters of the teams who participated in the 2004 Summer Olympics for men's basketball.
<section begin=ARG />The following is the Argentina roster in the men's basketball tournament of the 2004 Summer Olympics.
<section end=ARG />
<section begin=CHN />The following is the China roster in the men's basketball tournament of the 2004 Summer Olympics.
<section end=CHN />
<section begin=ITA />The following is the Italy roster in the men's basketball tournament of the 2004 Summer Olympics.
<section end=ITA />
<section begin=NZL />The following is the New Zealand roster in the men's basketball tournament of the 2004 Summer Olympics.
<section end=NZL />
<section begin=SCG />The following is the Serbia and Montenegro roster in the men's basketball tournament of the 2004 Summer Olympics.
<section end=SCG />
<section begin=ESP />The following is the Spain roster in the men's basketball tournament of the 2004 Summer Olympics.
<section end=ESP />
<section begin=ANG />The following is the Angola roster in the men's basketball tournament of the 2004 Summer Olympics.
<section end=ANG />
<section begin=AUS />The following is the Australia roster in the men's basketball tournament of the 2004 Summer Olympics.
<section end=AUS />
<section begin=GRE />The following is the Greece roster in the men's basketball tournament of the 2004 Summer Olympics.
<section end=GRE />
<section begin=LTU />The following is the Lithuania roster in the men's basketball tournament of the 2004 Summer Olympics.
<section end=LTU />
<section begin=PUR />The following is the Puerto Rico roster in the men's basketball tournament of the 2004 Summer Olympics.
<section end=PUR />
<section begin=USA />The following is the United States roster in the men's basketball tournament of the 2004 Summer Olympics.
<section end=USA />