| Competition: | Campeonato Brasileiro Série D |
| Season: | 2015 |
| Winners: | Botafogo-SP (1st title) |
| Promoted: | Botafogo-SP Ypiranga de Erechim Remo Ríver |
| Matches: | 190 |
| Total Goals: | 426 |
| League Topscorer: |  Jô(12 goals) |
| Biggest Home Win: | São Caetano 5–0 Lajeadense (12 July 2015) Duque de Caxias 5–0 Villa Nova (12 July 2015) |
| Highest Scoring: | Foz do Iguaçu 4–5 Volta Redonda (5 September 2015) |
| Highest Attendance: | 40,000 (11 November 2015) |
| Lowest Attendance: | 5 (13 September 2015) |
| Prevseason: | 2014 |
| Nextseason: | 2016 |
The 2015 Campeonato Brasileiro Série D, the fourth level of the Brazilian League, was contested by 40 clubs, and started on July 12 and ended on November 15, 2015. The four teams in the semifinals were promoted to the 2016 Campeonato Brasileiro Série C.[1]
The 40 teams are divided in eight groups of 5, playing within them in a double round-robin format. The two best ranked in each group at the end of 8 rounds will qualify to the Second Stage, which will be played in home-and-away system. Winners advance to Third Stage. The quarterfinal winners will be promoted to the 2016 Série C. As there is no Série E, or fifth division, technically there will be no relegation. However, teams who were not promoted will have to re-qualify for 2016 Série D through their respective state leagues.