| Competition: | Algerian Championnat National |
| Season: | 1965–66 |
| Dates: | 19 September 1965 – 19 June 1966 |
| Winners: | CR Belcourt |
| Relegated: | MSP Batna JSM Skikda USM Sétif ES Mostaganem |
| League Topscorer: | Abdelkader Reguig (20 goals) |
| Biggest Away Win: | JSM Skikda 0 - 5 CR Belcourt |
| Highest Scoring: | NA Hussein Dey 7 - 2 ES Mostaganem |
| Matches: | 240 |
| Total Goals: | 647 |
| Prevseason: | 1964–65 |
| Nextseason: | 1966–67 |
The 1965–66 Algerian Championnat National was the fourth season of the Algerian Championnat National since its establishment in 1962. A total of 16 teams contested the league,[1] with CR Belcourt as the defending champions.
Teams promoted from Algerian Division 2 1965-1966
Teams relegated to Algerian Division 2 1966-1967
| Goalscorer | Team | Goals | |
|---|---|---|---|
| 1 | Abdelkader Reguig | ASM Oran | 20 |
| 2 | Mohamed Bouhizeb | SCM Oran | 19 |
| 3 | Hacène Lalmas | CR Belcourt | 18 |
| 4 | Noureddine Hachouf | ES Guelma | 17 |
See main article: List of Algerian Ligue Professionnelle 1 hat-tricks.
| Player | For | Against | Result | Date | Ref |
|---|---|---|---|---|---|
| Ali M'barek | 5–0 | ||||
| 4–1 | |||||
| 4 | 2–4 | ||||
| 4–0 | |||||
| 7–2 | |||||
| Azza | 3–4 | ||||
| Bendimni | 1–4 | ||||
| Larbi | 3–1 | ||||