2003 South American Rugby Championship "A"

25° Campeonato Sudamericano de Rugby
Tournament details
Host Uruguay
Date27 April–
3 May 2003
Countries Argentina
 Chile
 Paraguay
 Uruguay
Final positions
Champions Argentina
Runner-up Uruguay
Relegated Paraguay
Tournament statistics
Matches played6
2002
2004

The 2003 South American Rugby Championship was the 25th edition of the competition of the leading national Rugby Union teams in South America.

The tournament was played in Montevideo, with four team participating. Paraguay and Brazil (winner of 2002 "B" championship play before a play-off to obtain qualification.

Argentina won the tournament.