| Tournament details | |
|---|---|
| Country | |
| Dates | 12 April – 2 May 1980 | 
| Teams | 32 | 
| Defending champions | Al-Ahli | 
| Final positions | |
| Champions | Al-Hilal (3rd title) | 
| Runner-up | Al-Shabab | 
| Tournament statistics | |
| Matches played | 31 | 
| Top goal scorer(s) | Naif Marzooq Néjib Limam Rivellino (5 goals)  | 
The 1980 King Cup was the 22nd season of the knockout competition since its establishment in 1956. Al-Ahli were the defending champions but were eliminated by Ohod in the Round of 32. Al-Hilal defeated city rivals Al-Shabab to win their 3rd title and first since 1964.[1]
Round of 32
The matches of the Round of 32 were held on 12, 13 and 14 April 1980.[2][3][4]
| Home team | Score | Away team | 
|---|---|---|
| Al-Noor | 3–1 | Al-Anwar | 
| Al-Riyadh | 4–1 | Al-Thoqbah | 
| Al-Ansar | 1–2 (aet) | Al-Shabab | 
| Al-Jabalain | 0–2 | Al-Ettifaq | 
| Al-Kawkab | 3–2 (aet) | Al-Raed | 
| Al-Khaleej | N/A | Al-Rabe'e | 
| Al-Faisaly | 3–2 (aet) | Al-Taqadom | 
| Al-Ittihad | 1–0 | Al-Nahda | 
| Al-Hilal | 2–0 | Al-Taawoun | 
| Ohod | 1–0 | Al-Ahli | 
| Al-Tai | 1–3 | Al-Nassr | 
| Al-Qadsiah | 5–2 | Okaz | 
| Al-Rawdhah | 1–0 (aet) | Hajer | 
| Al-Qala | 1–0 | Al-Watan | 
| Al-Wehda | 4–0 | Al-Nojoom | 
| Al-Washm | N/A (N/A pen.) | Damac | 
Round of 16
The Round of 16 matches were held on 17 and 18 April 1980.[5][6]
| Home team | Score | Away team | 
|---|---|---|
| Al-Ittihad | 1–0 | Al-Nassr | 
| Al-Shabab | 4–0 | Al-Ettifaq | 
| Al-Kawkab | 0–3 | Al-Qadsiah | 
| Al-Khaleej | 4–3 (aet) | Al-Noor | 
| Al-Hilal | 4–1 | Al-Wehda | 
| Al-Riyadh | 3–1 | Damac | 
| Al-Rawdhah | 1–2 | Al-Qala | 
| Ohod | 7–1 | Al-Faisaly | 
Quarter-finals
The Quarter-final matches were held on 21 and 22 April 1980.[7][8]
| Home team | Score | Away team | 
|---|---|---|
| Al-Shabab | 3–2 | Al-Qadsiah | 
| Al-Khaleej | 1–2 | Ohod | 
| Al-Ittihad | 9–0 | Al-Qala | 
| Al-Hilal | 3–0 | Al-Riyadh | 
Semi-finals
The four winners of the quarter-finals progressed to the semi-finals. The semi-finals were played on 24 and 25 April 1980. All times are local, AST (UTC+3).
| Al-Shabab | 3–0 | Al-Ittihad | 
|---|---|---|
| Marzooq  Al-Ma'ajil  | 
Report | 
Final
The final was played between Al-Hilal and Al-Shabab in the Youth Welfare Stadium in Riyadh.[9] This was the second final to be played by two teams from the same city following the 1979 final. Al-Hilal were appearing in their 6th final while Al-Shabab were appearing in their 2nd final.