| Liga Española de Baloncesto | |
| Season: | 1970–71 |
| Champions: | Real Madrid (13th title) |
| Runners Up: | Juventud Nerva |
| Teams: | 12 |
| Games: | 132 |
| Tv: | TVE |
| Top Scorer: | Alfredo Pérez |
| Highest Scoring: | (21 February 1971) |
| Winning Streak: | 17 games Juventud Nerva |
| Losing Streak: | 7 games Ignis Mataró |
| Biggest Home Win: | (6 December 1970) |
| Biggest Away Win: | (28 November 1970) |
| Prevseason: | 1969–70 |
| Nextseason: | 1971–72 |
The 1970–71 Liga Española de Baloncesto season was the 15th season of the Liga Española de Baloncesto and was played between 10 October 1970 and 7 March 1971. The season ended with Real Madrid winning their 13th title.
12 teams joined the league, including two promoted from the 1969–70 Segunda División.
| Team | Home city | |
|---|---|---|
| Bilbao | ||
| Barcelona | ||
| Lugo | ||
| Madrid | ||
| Ignis Mataró | Mataró | |
| Juventud Nerva | Badalona | |
| Bilbao | ||
| Manresa | ||
| Santa Cruz de Tenerife | ||
| Barcelona | ||
| Badalona |
|}
| Rank | Name | Team | Points | |
|---|---|---|---|---|
| 1 | 595 | |||
| 2 | 448 | |||
| 3 | 443 | |||
| 4 | 442 | |||
| 5 | 440 |