A La Liga 1990-91-es szezonja volt a bajnokság jubileumi, hatvanadik kiírása. A szezon 1990. szeptember 1-jén kezdődött és 1991. június 9-én ért véget. A bajnokságban 20 csapat vett részt, a győztes az FC Barcelona lett. Ez volt a klub tizenegyedik bajnoki címe.
| Klubok |
ATH |
ATL |
BAR |
BET |
CÁD |
CAS |
ESP |
LOG |
MAL |
OSA |
RBU |
RMA |
OVI |
RSO |
SEV |
SPG |
TEN |
VAL |
VALLA |
ZAR |
| Athletic Bilbao |
– |
2–1 |
0–6 |
4–0 |
4–0 |
1–1 |
1–1 |
1–1 |
2–0 |
2–0 |
2–1 |
1–0 |
2–1 |
2–1 |
2–0 |
1–2 |
2–0 |
0–2 |
0–1 |
2–0 |
| Atlético de Madrid |
2–0 |
– |
2–1 |
2–1 |
0–0 |
3–1 |
4–0 |
3–0 |
0–1 |
2–2 |
0–0 |
0–3 |
0–0 |
4–0 |
1–0 |
3–1 |
1–1 |
2–0 |
2–0 |
4–0 |
| FC Barcelona |
4–1 |
1–1 |
– |
4–2 |
2–0 |
6–0 |
5–2 |
2–1 |
2–1 |
2–0 |
0–0 |
2–1 |
0–0 |
1–3 |
3–0 |
3–2 |
1–0 |
3–1 |
1–0 |
2–1 |
| Real Betis Balompié |
1–0 |
0–0 |
2–3 |
– |
3–0 |
1–0 |
1–2 |
3–2 |
2–2 |
0–1 |
0–0 |
1–3 |
1–1 |
1–1 |
0–3 |
2–2 |
1–1 |
2–2 |
0–0 |
1–1 |
| Cádiz CF |
2–3 |
0–1 |
4–0 |
1–2 |
– |
0–0 |
0–0 |
2–0 |
1–0 |
1–1 |
0–0 |
1–0 |
2–1 |
1–1 |
2–1 |
1–1 |
1–2 |
0–0 |
0–0 |
2–1 |
| CD Castellón |
2–0 |
0–0 |
0–1 |
3–1 |
2–0 |
– |
1–1 |
0–0 |
0–1 |
1–0 |
0–0 |
0–3 |
1–0 |
1–1 |
0–0 |
3–2 |
5–1 |
0–2 |
4–2 |
0–0 |
| RCD Espanyol |
1–2 |
3–1 |
0–1 |
2–2 |
2–1 |
1–0 |
– |
0–1 |
3–0 |
0–1 |
1–0 |
3–1 |
5–0 |
1–0 |
4–0 |
0–2 |
1–0 |
0–0 |
2–0 |
0–0 |
| CD Logroñés |
1–1 |
0–1 |
0–2 |
1–0 |
1–1 |
2–1 |
1–0 |
– |
1–2 |
2–0 |
0–0 |
1–0 |
1–0 |
0–0 |
2–1 |
1–2 |
1–0 |
1–0 |
0–2 |
1–1 |
| RCD Mallorca |
0–0 |
1–0 |
1–1 |
1–0 |
0–0 |
0–0 |
4–0 |
2–0 |
– |
1–1 |
0–0 |
1–1 |
1–1 |
2–1 |
1–1 |
1–1 |
0–1 |
0–1 |
0–0 |
3–2 |
| CA Osasuna |
1–0 |
0–3 |
0–0 |
3–0 |
1–1 |
2–0 |
1–0 |
1–1 |
1–0 |
– |
1–0 |
3–3 |
0–0 |
3–1 |
1–0 |
2–1 |
3–1 |
0–2 |
2–1 |
1–0 |
| Real Burgos CF |
2–1 |
1–1 |
1–3 |
1–2 |
1–0 |
4–0 |
0–0 |
1–2 |
1–1 |
1–1 |
– |
2–1 |
4–0 |
2–0 |
1–1 |
1–1 |
2–0 |
0–0 |
0–1 |
0–1 |
| Real Madrid CF |
4–1 |
0–3 |
1–0 |
3–0 |
2–1 |
1–0 |
2–1 |
0–0 |
3–0 |
0–4 |
0–1 |
– |
1–1 |
2–3 |
7–0 |
2–1 |
3–0 |
4–0 |
1–0 |
2–0 |
| Real Oviedo |
1–1 |
3–0 |
1–0 |
1–0 |
1–1 |
3–0 |
4–1 |
0–0 |
1–0 |
0–0 |
1–1 |
0–0 |
– |
2–1 |
0–0 |
0–0 |
3–1 |
2–1 |
1–0 |
2–1 |
| Real Sociedad |
0–1 |
2–1 |
1–1 |
1–0 |
0–0 |
1–1 |
0–0 |
2–0 |
0–0 |
1–1 |
3–1 |
1–1 |
3–1 |
– |
1–1 |
1–0 |
1–3 |
1–0 |
1–1 |
1–0 |
| Sevilla FC |
3–0 |
1–1 |
0–1 |
3–2 |
2–1 |
3–0 |
1–1 |
1–0 |
1–0 |
2–1 |
1–2 |
2–0 |
3–0 |
1–0 |
– |
1–0 |
2–2 |
2–1 |
1–0 |
1–2 |
| Sporting de Gijón |
3–1 |
1–2 |
1–0 |
4–0 |
3–1 |
1–0 |
3–0 |
1–0 |
1–1 |
1–1 |
0–0 |
0–2 |
0–0 |
2–1 |
2–0 |
– |
2–1 |
1–1 |
4–0 |
1–0 |
| CD Tenerife |
1–0 |
0–0 |
0–1 |
1–1 |
1–0 |
1–0 |
2–0 |
2–0 |
2–1 |
2–1 |
2–0 |
0–1 |
1–2 |
2–0 |
0–4 |
0–0 |
– |
1–1 |
1–0 |
0–2 |
| Valencia CF |
2–1 |
1–1 |
2–2 |
3–1 |
2–1 |
1–0 |
2–1 |
0–1 |
1–0 |
1–1 |
0–1 |
2–1 |
1–1 |
0–1 |
2–1 |
0–1 |
4–2 |
– |
2–0 |
2–0 |
| Real Valladolid |
1–0 |
0–0 |
1–5 |
1–1 |
0–0 |
0–0 |
2–0 |
0–0 |
5–1 |
1–1 |
1–0 |
0–1 |
1–0 |
4–2 |
2–1 |
0–0 |
6–2 |
3–1 |
– |
0–0 |
| Real Zaragoza |
1–0 |
1–0 |
0–2 |
2–0 |
3–0 |
2–0 |
1–1 |
0–1 |
2–2 |
0–0 |
0–0 |
1–3 |
0–1 |
1–1 |
2–0 |
4–0 |
0–1 |
2–1 |
2–2 |
– |