Dakshina Kosala (IAST: Dakṣiṇa Kosala, "southern Kosala") is a historical region of central India. It was located in what is now Madhya Pradesh and Chhattisgarh along with some parts of the Sambalpur region in present-day Western Odisha. At its greatest extent, it may have also included a part of the Vidarbha region in present-day Maharashtra.

Its capitals at various times included Bhadravati, Sirpur (ancient Shripura), Tuman (ancient Tummana), and Ratanpur (ancient Ratnapura).

Dakshina Kosala ("South Kosala"), sometimes simply called Kosala, is hard to distinguish from Uttara Kosala ("North Kosala") in present-day Uttar Pradesh.

Epigraphic evidence suggests that the area bounded by the Shahdol, Raipur, Bilaspur, Anuppur Sambalpur districts was definitely a part of the Dakshina Kosala region. The inscriptions found in these districts record grants of villages located in the Kosala country, and the rulers mentioned in these inscriptions are given the titles indicating their lordship over Dakshina Kosala (such as Kosaladhisha, Kosaladhipati, and Kosala-narendra).

According to the 7th century Chinese traveler Xuanzang, the extent of the contemporary Kosala kingdom was 6,000 li in circuit, that is, around 81,000 square miles in area. This suggests that in the 7th century, the Dakshina Kosala region encompassed an area much larger than the region bounded by the above-mentioned districts. The Somavamshi inscriptions suggest that other areas of present-day Odisha, bordering Sambalpur, were also part of the Dakshina Kosala. During Xuanzang's period, Kosala appears to have extended from 78th meridian east to the 85th meridian east in the east–west direction.

The northern boundary of Kosala was located a little to the south of Amarakantaka, which was a part of the Mekala kingdom. The Puranas, including the Vayu Purana and the Matsya Purana, mention Mekala and Kosala as distinct regions. The ancient epigraphs, such as the Balaghat inscription of the Vakataka king Prithvishena II, also distinguish between these two regions. However, at one place, the Vayu Purana mentions the Mekalas as one of the Pancha Kosalas ("Five Kosalas"), which suggests that at some point, the chiefs of the Mekala region were subordinate to the rulers of the Kosala proper.

In the south, the Dakshina Kosala region, at its greatest extent, appears to have included a part of present-day Vidarbha region of Maharashtra. The legend of king Nala states that he reached the capital of Kosala: the description of the route of his march suggests that this capital was present-day Bhadravati.

In the 19th century Alexander Cunningham, the founder of Archaeological Survey of India, mentioned Dakshina Kosala as a synonym of Mahakoshal (or Maha-Kosala), without mentioning any source for this claim. However, none of the ancient texts or inscriptions support the claim that Dakshina Kosala and Mahakoshal refer to the same geographical unit. The ancient Sanskrit texts frequently mention Dakshina Kosala, but do not mention Mahakoshal as the name of a region.