| Gusztáv Gegus | |
| Order: | Minister of Justice of Hungary |
| Term Start: | 2 April 1906 |
| Term End: | 8 April 1906 |
| Predecessor: | Bertalan Lányi |
| Successor: | Géza Polónyi |
| Birth Date: | 5 October 1855 |
| Birth Place: | Pilismarót, Kingdom of Hungary |
| Death Place: | Budapest, Kingdom of Hungary |
| Profession: | politician, jurist |
| Party: | Independent |
Gusztáv Gegus (5 October 1855 - 19 February 1933) was a Hungarian politician and jurist, who served as Minister of Justice for several days in 1906.