Athletics at the 2010 South American Games – Women's 4 × 400 metre relay

The Women's 4x400m Relay event at the 2010 South American Games was held on March 23 at 18:55.

Results
Results were published.

†: Bolivia was initially 3rd in 3:51.04, but disqualified, because Alison Sánchez was tested positive for nandrolone.