István Havasi (December 21, 1930 in Dánszentmiklós, Pest - February 16, 2003 in Budapest) was a male race walker from Hungary. He competed for his native country at the 1964 Summer Olympics.
| Representing | ||||||
|---|---|---|---|---|---|---|
| 1961 | IAAF World Race Walking Cup | Lugano, Switzerland | 7th | 50 km | 4:46:59 | |
| 1963 | IAAF World Race Walking Cup | Varese, Italy | 1st | 50 km | 4:14:25 | |
| 1964 | Olympic Games | Tokyo, Japan | 19th | 50 km | 4:34:14.0 | |
| 1965 | IAAF World Race Walking Cup | Pescara, Italy | 12th | 50 km | 4:27:10 | |
| 1967 | IAAF World Race Walking Cup | Bad Saarow, East Germany | 11th | 50 km | 4:33:01 | |