Tetyana Petlyuk (born 22 February 1982) is a Ukrainian runner who specializes in the 800 metres.
Her personal best time is 1:57.34 minutes, achieved in June 2006 in Kiev.
| Year | Competition | Venue | Position | Notes |
|---|---|---|---|---|
| 1999 | World Youth Championships | Bydgoszcz, Poland | 2nd | |
| 2000 | World Junior Championships | Santiago, Chile | 6th | |
| 2006 | European Championships | Gothenburg, Sweden | 200th | 1:58.65 |
| 2006 | World Athletics Final | Stuttgart, Germany | 6th | |
| 2007 | European Championships | Birmingham, England | 2nd |