1980 Stockholm Open – Men's singles
# 1980 Stockholm Open – Men's singles

John McEnroe was the defending champion, but lost in the final this year.

Björn Borg won the title, defeating John McEnroe 6–3, 6–4 in the final.

## Seeds

* Björn Borg (champion)
* John McEnroe (final)
* Gene Mayer (semifinals)
* Harold Solomon (first round)
* Brian Gottfried (second round)
* Eliot Teltscher (second round)
* Wojtek Fibak (second round)
* Victor Amaya (second round)

## Draw

### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Final

| Final | Final | Final | Final | Final |
| - | - | - | - | - |
| 1 | Björn Borg | 6 | 6 | |
| 2 | John McEnroe | 3 | 4 | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 1 | B Borg | 6 | 6 | | | | | | | | | | | | | | | |
| | T Šmíd | 4 | 3 | | 1 | B Borg | 6 | 6 | | | | | | | | | | |
| | H Günthardt | 6 | 6 | | | H Günthardt | 2 | 3 | | | | | | | | | | |
| | S Smith | 4 | 1 | | | | | | | 1 | B Borg | 2 | 6 | 6 | | | | |
| | Y Noah | 6 | 2 | 6 | | | | | | | Y Noah | 6 | 2 | 4 | | | | |
| | P Kronk | 4 | 6 | 1 | | Y Noah | 7 | 6 | | | | | | | | | | |
| | C Dibley | 4 | 4 | | 8 | V Amaya | 5 | 4 | | | | | | | | | | |
| 8 | V Amaya | 6 | 6 | | | | | | | | | | | | 1 | B Borg | 6 | 7 |
| 3 | G Mayer | 6 | 6 | | | | | | | | | | | | 3 | G Mayer | 2 | 5 |
| | A Pattison | 2 | 2 | | 3 | G Mayer | 6 | 6 | | | | | | | | | | |
| | B Walts | 6 | 4 | 6 | | B Walts | 2 | 1 | | | | | | | | | | |
| | S Simonsson | 4 | 6 | 1 | | | | | | 3 | G Mayer | 6 | 6 | | | | | |
| | S Glickstein | 6 | 7 | | | | | | | | S Glickstein | 0 | 2 | | | | | |
| | B Mitton | 4 | 6 | | | S Glickstein | 6 | 3 | 6 | | | | | | | | | |
| Q | M Wilander | 7 | 5 | 1 | 5 | B Gottfried | 2 | 6 | 0 | | | | | | | | | |
| 5 | B Gottfried | 5 | 7 | 6 | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 7 | W Fibak | 6 | 6 | | | | | | | | | | | | | | |
| | S Mayer | 4 | 2 | | 7 | W Fibak | 6 | 1 | 5 | | | | | | | | |
| | R Lutz | 6 | 6 | | | R Lutz | 3 | 6 | 7 | | | | | | | | |
| | P Portes | 3 | 1 | | | | | | | | R Lutz | 6 | 6 | | | | |
| Q | U Eriksson | 6 | 5 | 6 | | | | | | | P Hjertquist | 3 | 3 | | | | |
| Q | J Källqvist | 4 | 7 | 4 | Q | U Eriksson | 2 | 4 | | | | | | | | | |
| | P Hjertquist | 6 | 6 | | | P Hjertquist | 6 | 6 | | | | | | | | | |
| 4 | H Solomon | 2 | 1 | | | | | | | | | | | | R Lutz | 3 | 3 |
| 6 | E Teltscher | 5 | 6 | 6 | | | | | | | | | | 2 | J McEnroe | 6 | 6 |
| | Á Giménez | 7 | 0 | 1 | 6 | E Teltscher | 2 | 2 | | | | | | | | | |
| Q | H Simonsson | 6 | 7 | | Q | H Simonsson | 6 | 6 | | | | | | | | | |
| | R Van't Hof | 2 | 5 | | | | | | | Q | H Simonsson | 5 | 3 | | | | |
| | P McNamee | 3 | 6 | 6 | | | | | | 2 | J McEnroe | 7 | 6 | | | | |
| | H Pfister | 6 | 2 | 4 | | P McNamee | 2 | 4 | | | | | | | | | |
| | B Taróczy | 3 | 0 | | 2 | J McEnroe | 6 | 6 | | | | | | | | | |
| 2 | J McEnroe | 6 | 6 | | | | | | | | | | | | | | |
