The 2018 Swiss Indoors was a men's tennis tournament played on indoor hard courts. It was the 49th edition of the tournament, and part of the 500 series of the 2018 ATP World Tour. It was held at the St. Jakobshalle in Basel, Switzerland, from 22 October through 28 October 2018. First-seeded Roger Federer won his ninth singles title at the event.
| 2018 Swiss Indoors | |
|---|---|
| Date | 22–28 October |
| Edition | 49th |
| Category | ATP World Tour 500 |
| Draw | 32S / 16D |
| Prize money | €1,984,420 |
| Surface | Hard / indoor |
| Location | Basel, Switzerland |
| Venue | St. Jakobshalle |
| Champions | |
| Singles | |
 Roger Federer[1] | |
| Doubles | |
 Dominic Inglot /  Franko Škugor[2] | |
Finals
Singles
Roger Federer defeated 
Marius Copil, 7–6(7–5), 6–4
Doubles
Dominic Inglot / 
Franko Škugor defeated 
Alexander Zverev / Mischa Zverev, 6–2, 7–5
Points and prize money
Point distribution
| Event | W | F | SF | QF | Round of 16 | Round of 32 | Q | Q2 | Q1 |
| Singles[3] | 500 | 300 | 180 | 90 | 45 | 0 | 20 | 10 | 0 |
|---|---|---|---|---|---|---|---|---|---|
| Doubles[3] | 0 | — | 45 | 25 | 0 |
Singles main-draw entrants
Seeds
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| SUI | Roger Federer | 3 | 1 |
 GER | Alexander Zverev | 5 | 2 |
| CRO | Marin Čilić | 6 | 3 |
 GRE | Stefanos Tsitsipas | 16 | 4 |
 USA | Jack Sock | 18 | 5 |
 ITA | Marco Cecchinato | 19 | 6 |
 RUS | Daniil Medvedev | 21 | 7 |
 ESP | Roberto Bautista Agut | 25 | 8 |
- Rankings are as of October 15, 2018
Other entrants
The following players received wildcards into the singles main draw:
The following player received entry as a special exempt:
The following players received entry from the qualifying draw:
The following player received entry as a lucky loser:
Withdrawals
- Before the tournament
Juan Martín del Potro → replaced by Maximilian Marterer
David Goffin → replaced by 
Ryan Harrison- Stan Wawrinka → replaced by
Dušan Lajović
Doubles main-draw entrants
Seeds
| Country | Player | Country | Player | Rank1 | Seed |
|---|---|---|---|---|---|
 RSA | Raven Klaasen |  NZL | Michael Venus | 30 | 1 |
| CRO |  JPN | ||||
 NED | Jean-Julien Rojer |  ROU | Horia Tecău | 52 | 3 |
 IND | Rohan Bopanna | ESP | Marcel Granollers | 55 | 4 |
- Rankings are as of October 15, 2018
Other entrants
The following pairs received wildcards into the doubles main draw:
The following pair received entry from the qualifying draw:
The following pair received entry as lucky losers:
Withdrawals
- Before the tournament