The women's 800 metre freestyle competition at the 2014 South American Games took place on March 8 at the Estadio Nacional.

[1] The last champion was Andreina Pinto of Venezuela.

[2] This event was a timed-final where each swimmer swam just once.

The top 8 seeded swimmers swam in the evening, and the remaining swimmers swam in the morning session.

[3][4] Prior to this competition, the existing world and Pan Pacific records were as follows: All times are in minutes and seconds.