Ana Camila Donatella Pirelli Cubas (born 30 January 1989), nicknamed “Guarani Panther”,[1][2] is a Paraguayan track and field athlete who competes in the heptathlon.

Pirelli holds more than a dozen national records in events as varied as the 100 metres hurdles, shot put and the indoor women's pentathlon.

[3] Pirelli has committed to using her platform as a sportswoman to speak out about the impact of climate change as an EcoAthlete Champion, saying that growing up surrounded by wildlife has made her eager to protect it.

Pirelli had an upbringing full of sports – her father was a basketball player while her mother was a former national universities champion in the pentathlon.

[6] In 2006, she ran a Paraguayan national record of 25.51 seconds for the 200 metres and won the gold medal in the heptathlon at the 2006 South American Youth Championships in Athletics.

[13] Pirelli graduated from Oral Roberts University with a degree in biology in 2012 and was the highest academic performer among the school's student athletes that year.

[18] She was runner-up to Brazil's Tamara de Souza at the 2013 South American Championships in Athletics – being one of two medallists for Paraguay alongside Víctor Fatecha.