Katalin Hartai (born 24 March 1963 in Budapest) is a retired female javelin thrower from Hungary who represented her native country during the 1980s and the early 1990s.
| Year | Tournament | Venue | Result | Extra | |
|---|---|---|---|---|---|
| 1987 | World Championships | Rome, Italy | 11th | 60.88 m | |
| 1990 | European Championships | Split, FR Yugoslavia | 5th | 63.52 m | |
| 1991 | World Championships | Tokyo, Japan | 21st | 55.68 m |