| Native Name: | Bezirk Knittelfeld |
| Native Name Lang: | de |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Austria |
| Subdivision Type1: | State |
| Subdivision Name1: | Styria |
| Subdivision Type2: | Number of municipalities |
| Subdivision Name2: | 14 |
| Unit Pref: | Metric |
| Area Total Km2: | 578.0 |
| Population Total: | 29,661 |
| Population As Of: | 2001 |
| Population Density Km2: | auto |
| Timezone1: | CET |
| Utc Offset1: | +1 |
| Timezone1 Dst: | CEST |
| Utc Offset1 Dst: | +2 |
| Area Code Type: | Telephone prefix |
| Blank Name Sec1: | NUTS code |
Bezirk Knittelfeld was a district of the state of Styria in Austria. On January 1, 2012 Knittelfeld District and Judenburg District were merged to Murtal District.
Towns (Städte) are indicated in boldface; market towns (Marktgemeinden) in italics; suburbs, hamlets and other subdivisions of a municipality are indicated in small characters.