| Competition: | 1. Amateurliga Rheinland |
| Season: | 1965–66 |
| Winners: | Germania Metternich |
| Relegated: | FC Horchheim, SV Ehrang, TuS Marienberg |
| Prevseason: | 1964–65 |
| Nextseason: | 1966–67 |
The 1965–66 Rheinlandliga was the 14th season of the highest amateur class of the Rhineland Football Association under the name of 1. Amateurliga Rheinland. It was a predecessor of today's Rheinlandliga.
Rhineland champion was Germania Metternich.[1] SSV Mülheim participated as a Rhineland representative in the German football amateur championship 1966, failed in the quarter finale against the Baden representative Amicitia Viernheim.
The relegation to the second amateur league was made by the newcomer SV Prüm and SV Niederlahnstein.
For the subsequent 1966–67 season, FC Horchheim, SV Ehrang and TuS Marienberg came up from the 2. Amateur league.[2]
| Rank | Clubs | Games | Goals | Points | |
|---|---|---|---|---|---|
| 1. | Germania Metternich (A) | 30 | 84:35 | 45:15 | |
| 2. | SSV Mülheim | 30 | 82:42 | 41:19 | |
| 3. | BSV Weißenthurm | 30 | 71:52 | 37:23 | |
| 4. | FV Engers | 30 | 60:55 | 36:24 | |
| 5. | Alemannia Plaidt | 30 | 83:64 | 35:25 | |
| 6. | SC Sinzig | 30 | 79:74 | 34:26 | |
| 7. | Sportfreunde Herdorf | 30 | 72:66 | 33:27 | |
| 8. | SC 07 Bad Neuenahr | 30 | 55:52 | 30:30 | |
| 9. | FV Rübenach (N) | 30 | 61:73 | 29:31 | |
| 10. | VfL Neuwied | 30 | 75:62 | 29:31 | |
| 11. | SpVgg Andernach | 30 | 65:65 | 27:33 | |
| 12. | TuS Mayen | 30 | 56:58 | 27:33 | |
| 13. | VfL Trier | 30 | 45:50 | 27:33 | |
| 14. | SpVgg Bendorf (M) | 30 | 58:78 | 26:34 | |
| 15. | SV Prüm (N) | 30 | 50:106 | 14:46 | |
| 16. | SV Niederlahnstein | 30 | 47:111 | 10:50 |
| Division Champion | ||
| Relegation to 2. Amateur League | ||
| (M) | Previous year's champions | |
|---|---|---|
| (A) | Previous year's descendants from the 2nd Division | |
| (N) | Previous year's climbers from the 2. Amateur League |