Sharon Firisua (born 15 December 1993) is a Solomon Islands track and field athlete.
In 2013 she was named the Solomon Islands Sportswoman of the Year.
She started training seriously in 2010 and at her second Pacific Games in 2015 she took two gold medals at 5000 and 1000m and another in the half marathon in Port Moresby, Papua New Guinea.
At the 2016 Summer Olympics she competed in the 5000 m event.