| Competition: | National Football League |
| Season: | 2003–04 |
| Dates: | 28 November 2003 – 14 May 2004 |
| Winners: | East Bengal 3rd NFL title 3rd Indian title |
| Runners-Up: | Dempo |
| Continentalcup2: | AFC Cup |
| League Topscorer: | Cristiano Júnior (15 goals)[1] |
| Biggest Away Win: | [2] |
| Prevseason: | 2002–03 |
| Nextseason: | 2004–05 |
The 2003–04 National Football League was the eighth season of National Football League, the top Indian league for association football clubs, since its inception in 1996.
The fixtures for the first phase of the season (till round 11) were announced on 20 November 2003.[3] It was contested by 12 teams, and East Bengal won the championship, in the month of April under the coach Subhas Bhowmick. Dempo came second and Mahindra came third. Indian Bank and Mohammedan were relegated from the National Football League next season.
| Rank | Player | Club | Goals[4] |
|---|---|---|---|
| 1 |  Cristiano Júnior | East Bengal | 15 |
| 2 |  Yusif Yakubu | Churchill Brothers | 14 |
| 3 |  Dudu Omagbemi | Mohammedan Sporting | 13 |
| 4 |  Bhaichung Bhutia | East Bengal | 12 |
| 5 | Abdul Seriki | Mohammedan Sporting | 11 |
| 6 |  Sunday Seah | Dempo | 9 |
| 7 | Abhishek Yadav | Mahindra United | 7 |
| Harvinder Singh | JCT Mills |
| Player | For | Against | Result | Date | ||
|---|---|---|---|---|---|---|
| Mohun Bagan | Indian Bank | 3–0 (H) | 15 December 2003 | [5] | ||
| Churchill Brothers | Indian Bank | 4–1 (H) | 5 March 2004 | [6] | ||
| Mahindra United | Mohammedan Sporting | 5–1 (A) | 17 March 2004 | |||
| Sporting Clube | Indian Bank | 4–1 (H) | 5 April 2004 | [7] | ||
| Marcos Pereira | Vasco | Mohun Bagan | 5–1 (H) | 16 April 2004 |
Note: (H) – Home; (A) – Away