Gabriella Machado e Silva (born December 12, 1988, in Rio de Janeiro, Brazil) is a Brazilian butterfly swimmer and Olympian.

[1] As of October 2008, she was the South American and Brazilian record holder in the long-course 100-metre butterfly.

At the 2007 Pan American Games, in Rio de Janeiro, Gabriella won the bronze medal in the 100-metre butterfly.

[2] She also won bronze in the 4×100-metre medley [3][4] by participate in heats,[5] but, subsequently, this result was impeached due to Rebeca Gusmao's doping.

[11] At the 2011 Pan American Games, in Guadalajara, Gabriella finished 10th in the 100-metre butterfly, not going to the final.