| Series 2042 | |
| Powertype: | Diesel-electric |
| Builder: | Đuro Đaković, Brissonneau et Lotz |
| Builddate: | 1962–1967 |
| Uicclass: | Bo′Bo′ |
| Length: | 14.74frac=8NaNfrac=8 |
| Locoweight: | 67.2t / 74t |
| Enginetype: | V12 |
| Cylindercount: | 12 |
| Maxspeed: | 80km/h |
| Poweroutput: | Series 000: 680-1NaN-1, Series 100: 750-1NaN-1 |
| Operatorclass: | HŽ 2042 |
| Nicknames: | Đuran |
| Locale: | Croatia |
Series 2042 is a diesel locomotive series on Croatian Railways (Croatian: hrvatske željeznice, HŽ).
This series is not substantively different from the series 2041, except that they have a stronger engine. With the upgrade in motor, this locomotives changed the traction behavior. These are four-axle locomotives with every axle separately powered. This series is built for hauling of lighter freight trains and for heavy maneuvering.