Fernanda Nunes Alvarenga (born August 20, 1986) is a Brazilian competitive swimmer.

[3] At the 2007 Pan American Games, in Rio de Janeiro, Alvarenga won bronze in the 4×100-metre medley [4][5] by participate in heats.

[6] Subsequently, this result was impeached due to Rebeca Gusmao's doping.

Alvarenga was also in the 200-metre backstroke, where she went to the semifinals, finishing 4th on her battery and got no time to qualify to the final.

[14] Integrating Brazilian national delegation that disputed the 2011 Pan American Games in Guadalajara,[15] Alvarenga was at the 200-metre backstroke final, finishing in 8th place.