| Conventional Long Name: | Banjar Region |
| Native Name: | Daerah Banjar |
| Common Name: | Banjar Region |
| Subdivision: | Federation |
| Nation: | Indonesia |
| Status Text: | State-level autonomous region of Indonesia |
| P1: | Republic of Indonesia |
| Flag P1: | Flag of Indonesia.svg |
| S1: | South Kalimantan |
| Flag S1: | Flag of Indonesia.svg |
| Flag Type: | Flag |
| Image Map Caption: | Banjar in the United States of Indonesia |
| Title Leader: | President (government title) |
| Leader1: | Mohammad Hanafiah |
| Era: | Cold War |
| Date Start: | 14 January |
| Year Start: | 1948 |
| Date End: | 4 April |
| Year End: | 1950 |
Banjar Region (Indonesian: Daerah Banjar, old spelling Bandjar) was an autonomous area formed in the southeastern part of Indonesian island of Borneo by the Netherlands in 1948 as part of an attempt to re-establish the colony of the Dutch East Indies during the Indonesian National Revolution. Banjar became a constituent part of the United States of Indonesia in 1949. The chairman of the Banjar Council was Mohammed Hanafiah. The region was dissolved on 4 April 1950 and combined with Great Dayak and the Southeast Borneo Federation to form Kalimantan Province. Today, the territory of the former region comprises around two thirds of South Kalimantan Province.