2015 Swiss Indoors

The 2015 Swiss Indoors was a men's tennis tournament played on indoor hard courts. It was the 46th edition of the tournament, and part of the 500 series of the 2015 ATP World Tour. It was held at the St. Jakobshalle in Basel, Switzerland, from 26 October through 1 November 2015. First-seeded Roger Federer won the singles title.

Singles

 * Roger Federer defeated 🇪🇸 Rafael Nadal 6–3, 5–7, 6–3

Doubles

 * 🇦🇹 Alexander Peya / 🇧🇷 Bruno Soares defeated 🇬🇧 Jamie Murray / 🇦🇺 John Peers 7–5, 7–5

Seeds

 * Rankings are as of October 19, 2015

Other entrants
The following players received wildcards into the singles main draw:
 * Marco Chiudinelli
 * Henri Laaksonen

The following players received entry from the qualifying draw:
 * Robin Haase
 * 🇵🇱 Jerzy Janowicz
 * 🇷🇸 Dušan Lajović
 * 🇫🇷 Adrian Mannarino

The following player received entry as a lucky loser:
 * 🇺🇸 Denis Kudla

Withdrawals

 * Before the tournament
 * 🇨🇾 Marcos Baghdatis (groin injury)→replaced by Denis Kudla
 * 🇫🇷 Julien Benneteau →replaced by Borna Ćorić
 * 🇯🇵 Kei Nishikori →replaced by Jiří Veselý
 * 🇨🇦 Milos Raonic →replaced by Sergiy Stakhovsky
 * 🇫🇷 Gilles Simon →replaced by Donald Young

Retirements

 * 🇺🇦 Alexandr Dolgopolov (right elbow injury)

Seeds

 * Rankings are as of October 19, 2015

Other entrants
The following pairs received wildcards into the doubles main draw:
 * Adrien Bossel / Marco Chiudinelli
 * Henri Laaksonen / Luca Margaroli

The following pair received entry from the qualifying draw:
 * Treat Huey / 🇫🇮 Henri Kontinen

The following pair received entry as lucky losers:
 * Robin Haase / 🇺🇦 Sergiy Stakhovsky

Withdrawals

 * 🇧🇷 Marcelo Melo (left leg injury)