Renáta Medgyesová (born 28 January 1983 in Komárno) is a former Slovak athlete, competing in the long jump, triple jump and high jump.
| Year | Competition | Venue | Position | Event | Notes |
Representing  Slovakia |
| 1997 | European Junior Championships | Ljubljana, Slovenia | 6th | High jump | 1.85 m |
| 1998 | World Junior Championships | Annecy, France | 13th (q) | High jump | 1.81 m |
| 1999 | World Youth Championships | Bydgoszcz, Poland | 2nd | High jump | 1.83 m |
| 5th | Triple jump | 13.22 m |
| European Junior Championships | Riga, Latvia | 7th | High jump | 1.82 m |
| 2000 | European Indoor Championships | Ghent, Belgium | 17th (q) | High jump | 1.80 m |
| World Junior Championships | Santiago, Chile | 17th (q) | High jump | 1.80 m |
| 2001 | European Junior Championships | Grosseto, Italy | 11th | High jump | 1.83 m |
| 2002 | European Indoor Championships | Vienna, Austria | 16th (q) | High jump | 1.84 m |
| World Junior Championships | Kingston, Jamaica | 5th | High jump | 1.85 m |
| 2010 | European Championships | Barcelona, Spain | 7th | Long jump | 6.71 m |
| 2011 | European Indoor Championships | Paris, France | 16th (q) | Long jump | 6.37 m |
| 2012 | European Championships | Helsinki, Finland | 27th (q) | Long jump | 5.95 m |
| 2013 | European Indoor Championships | Gothenburg, Sweden | 12th (q) | Long jump | 6.35 m |
| 2015 | European Indoor Championships | Prague, Czech Republic | 20th (q) | Long jump | 6.04 m |
