Terezinha Guilhermina (born 3 October 1978) is a Paralympicathlete from Brazil competing mainly in category T11 sprint events, T11 being the category for totally blind athletes. She has congenital retinitis pigmentosa, as do five of her twelve brothers.
She competed in the 2004 Summer Paralympics in Athens, Greece. There she won a bronze medal in the women's 400 metres – T12 event, went out in the first round of the women's 800 metres – T12 event and finished seventh in the women's 1500 metres – T12 event. She also competed at the 2008 Summer Paralympics in Beijing, China. There she won a gold medal in the women's 200 metres – T11 event, a silver medal in the women's 100 metres – T11 event and a bronze medal in the women's 400 metres – T11 event. In London 2012, she won two gold medals. In Rio 2016, she won silver in the women's 4x100m relay - T11-13 and bronze in the women's 400m - T11. She was disqualified from the 200m T11 and 100m T11 after a false start. Her guide runner in Rio was Rafael Lazarini.