| Doubles | |
|---|---|
| 2016 Swiss Indoors | |
| Champions |  Marcel Granollers  Jack Sock |
| Runners-up |  Robert Lindstedt  Michael Venus |
| Score | 6−3, 6−4 |
| Draw | 16 |
| Seeds | 4 |
Alexander Peya and Bruno Soares were the defending champions, but they chose to compete (with different partners) in Vienna instead.
Marcel Granollers and Jack Sock won the title, defeating Robert Lindstedt and Michael Venus in the final, 6–3, 6–4.
Jean-Julien Rojer / 
Horia Tecău (semifinals)
Nicolas Mahut / Édouard Roger-Vasselin (semifinals)
Raven Klaasen / Rajeev Ram (quarterfinals) Marcel Granollers / Jack Sock (champions)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | J-J Rojer H Tecău | 6 | 3 | [10] | |||||||||||||||||||||||
| Q |  F Delbonis G Pella | 3 | 6 | [3] | 1 | J-J Rojer H Tecău | 69 | 6 | [10] | ||||||||||||||||||
 T Huey  M Mirnyi | 7 | 6 | T Huey M Mirnyi | 711 | 4 | [4] | |||||||||||||||||||||
| WC |  A Bellier M Chiudinelli | 5 | 4 | 1 | J-J Rojer H Tecău | 6 | 3 | [8] | |||||||||||||||||||
| 3 | R Klaasen R Ram | 6 | 6 | R Lindstedt M Venus | 1 | 6 | [10] | ||||||||||||||||||||
P Carreño Busta  P Lorenzi | 2 | 4 | 3 | R Klaasen R Ram | 4 | 5 | |||||||||||||||||||||
| R Lindstedt M Venus | 77 | 6 | R Lindstedt M Venus | 6 | 7 | ||||||||||||||||||||||
 I Dodig  N Zimonjić | 63 | 3 | R Lindstedt M Venus | 3 | 4 | ||||||||||||||||||||||
| WC | A Bossel H Laaksonen | 63 | 3 | 4 | M Granollers J Sock | 6 | 6 | ||||||||||||||||||||
 D Inglot F Mergea | 77 | 6 | D Inglot F Mergea | 5 | 2r | ||||||||||||||||||||||
 JS Cabal R Farah | 3 | 7 | [5] | 4 | M Granollers J Sock | 7 | 2 | ||||||||||||||||||||
| 4 | M Granollers J Sock | 6 | 5 | [10] | 4 | M Granollers J Sock | 6 | 6 | |||||||||||||||||||
 M Baghdatis  G Müller | 5 | 78 | [1] | 2 | N Mahut É Roger-Vasselin | 3 | 4 | ||||||||||||||||||||
D Marrero  M Matkowski | 7 | 66 | [10] | D Marrero M Matkowski | 1 | 4 | |||||||||||||||||||||
 H Kontinen  J Peers | 4 | 65 | 2 | N Mahut É Roger-Vasselin | 6 | 6 | |||||||||||||||||||||
| 2 | N Mahut É Roger-Vasselin | 6 | 77 | ||||||||||||||||||||||||
Taylor Fritz / Adrian Mannarino (qualifying competition) Federico Delbonis / Guido Pella (qualified)| First round | Qualifying competition | ||||||||||||
| 1 | Taylor Fritz Adrian Mannarino | 6 | 6 | ||||||||||
Robin Haase  Mikhail Youzhny | 2 | 4 | |||||||||||
| 1 | Taylor Fritz Adrian Mannarino | 6 | 67 | [1] | |||||||||
| 2 | Federico Delbonis Guido Pella | 2 | 79 | [10] | |||||||||
| WC | Johan Nikles  Stefanos Tsitsipas | 4 | 4 | ||||||||||
| 2 | Federico Delbonis Guido Pella | 6 | 6 | ||||||||||
Defending champion Rafael Nadal successfully defended his title, defeating David Ferrer in the final, 7–6(7–1), 7–5. It was his record-extending seventh title at the Barcelona Open.
Martín Alund and Guido Pella were the defending champions but decided not to participate.
Nicolás Barrientos and Eduardo Struvay defeated Facundo Bagnis and Federico Delbonis 3–6, 6–3, [10–6] in the final to win the title.
Jerzy Janowicz was the defending champion but decided to participate in the 2013 Mutua Madrid Open instead.
Aljaž Bedene defeated Filippo Volandri 6–4, 6–2 in the final to win the title.
Federico Delbonis was the defending champion but chose not to compete.
Horacio Zeballos was the defending champion, but lost in the second round to Daniel Gimeno Traver.
Fabio Fognini won the title, defeating Leonardo Mayer in the final 6–2, 6–4.
Rafael Nadal was the defending champion but chose not to compete.
Tommy Robredo was the defending champion, but he decided to compete in Houston instead.
Albert Montañés was the defending champion, but lost to Ernests Gulbis in the semifinals. Gulbis went on to win the title, defeating Federico Delbonis in the final, 6–1, 7–6(7–5).
Mikhail Youzhny was the defending champion, but lost to Robin Haase in the quarterfinals.
Pablo Andújar won the title, defeating Juan Mónaco in the final, 6–3, 7–5.
Federico Delbonis was the defending champion, but lost to Facundo Bagnis in the first round.
Pablo Cuevas won the title, defeating Luca Vanni in the final, 6–4, 3–6, 7–6(7–4).
Two-time defending champion Novak Djokovic defeated Andy Murray in the final, 6–2, 6–4 to win the singles tennis title at the 2015 Paris Masters. It was his record fourth Paris Masters title. With the win, Djokovic became the first man to win six Masters 1000 titles in the same year.
Guillermo García López was the defending champion, but lost in the semifinals to Fernando Verdasco.
Roger Federer was the defending champion, but chose not to participate this year.
The 2016 Swiss Indoors was a men's tennis tournament played on indoor hard courts. It was the 47th edition of the event, and part of the 500 series of the 2016 ATP World Tour. It was held at the St. Jakobshalle in Basel, Switzerland, from 24 October through 30 October 2016. Fourth-seeded Marin Čilić won the singles title.
Marco Cecchinato was the defending champion but lost in the semifinals to Federico Delbonis.
Nicolás Kicker was the defending champion but lost in the second round to Gleb Sakharov.
Marcel Granollers and Jack Sock were the defending champions, but chose not to participate together this year. Granollers played alongside Ivan Dodig and successfully defended the title, defeating Fabrice Martin and Édouard Roger-Vasselin in the final, 7–5, 7–6(8–6). Sock teamed up with Nicholas Monroe, but lost to Dodig and Granollers in the semifinals.
Pablo Cuevas was the three-time defending champion, but lost in the semifinals to Fabio Fognini.
Dominic Thiem defeated Daniil Medvedev in the final, 6–4, 6–0, to win the singles title at the 2019 Barcelona Open.
Kevin Anderson was the defending champion, but could not participate this year due to a knee injury.