Ottavia Cestonaro (born 12 January 1995) is an Italian long jumper and triple jumper.
She has won five times her country's senior national championship, and ranked in the top 60, at 33rd place, on the IAAF world leading list at the end of the 2017 indoor season. She also won an individual gold medal at junior level at the 2013 European Athletics Junior Championships held in Rieti.
She is currently engaged to the rugby union player Marco Zanon.
She has won 8 times the individual national championship.