| Kalyana-Karnataka | |
| Other Name: | Hyderabad-Karnataka |
| Settlement Type: | Region |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Karnataka |
| Subdivision Type2: | Regions |
| Subdivision Type3: | Districts |
| Established Title: | Merger into India |
| Established Date: | 17 September 1948 |
| Established Title1: | Part of Mysore State (renamed Karnataka in 1974) |
| Established Date1: | 1 November 1956 |
| Government Type: | Regional Administration |
| Unit Pref: | Metric |
| Area Total Km2: | 44,138 |
| Population Total: | 11,286,343 |
| Population As Of: | 2011 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Kannada |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Subdivision Type4: | Largest cities (areawise) |
| Subdivision Name4: | |
| Subdivision Type5: | Most Populated Cities |
| Postal Code Type: | Pin Code |
| Iso Code: | IN-KA |
| Registration Plate: | KA |
| Governing Body: | Kalyana-Karnataka Region Development Board (KKRDB) |
| Leader Title1: | Divisional Commissioner officer |
| Leader Name1: | N. V. Prasad, IAS |
| Leader Title3: | President of the Kalyana-Karnataka Development Board |
| Leader Name3: | Dr.Ajay Singh |
Kalyana-Karnataka, formerly known as Hyderabad-Karnataka, is a region located in the northern part of the Indian state of Karnataka, which was part of Hyderabad State ruled by the Nizams and the Madras presidency of British India. The region comprises Bidar, Yadgir, Raichur, Koppal and Kalaburagi of Hyderabad state and, Ballari and Vijayanagara of the Madras province that are now present in the state of Karnataka. The Northeast-Karnataka region is the second largest arid region in India.[1] [2] [3] [4] [5] Kalaburagi and Ballari are the largest cities of this region.
In 1948, when the Hyderabad State was officially merged into India, some portions of it were incorporated into the state of Karnataka.[6]
In 2019, the Hyderabad-Karnataka region was officially renamed as Kalyana-Karnataka.[7] [8]