| Doubles | |
|---|---|
| 2016 Torneo Internacional Challenger León | |
| Champions |  Santiago González  Mate Pavić |
| Runners-up |  Sam Groth  Leander Paes |
| Final score | 6–4, 3–6, [13–11] |
Austin Krajicek and Rajeev Ram were the defending champions, but only Krajicek chose to defend his title partnering Alejandro Falla. Krajicek and Falla withdrew before playing a match.
Santiago González and Mate Pavić won the title, defeating Sam Groth and Leander Paes 6–4, 3–6, [13–11] in the final.
Santiago González / Mate Pavić (champions)
Marcus Daniell / Artem Sitak (semifinals) Sam Groth / Leander Paes (final)
Dean O'Brien / Miguel Ángel Reyes-Varela (semifinals)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | S González M Pavić | 6 | 6 | ||||||||||||||||||||||||
 R Maytín  A Menéndez-Maceiras | 4 | 2 | 1 | S González M Pavić | 6 | 6 | |||||||||||||||||||||
 A Behar  A Motti | 4 | 4 | P Raja R Roelofse | 2 | 2 | ||||||||||||||||||||||
| P Raja R Roelofse | 6 | 6 | 1 | S González M Pavić | 77 | 6 | |||||||||||||||||||||
| 4 | D O'Brien MÁ Reyes-Varela | w/o | 4 | D O'Brien MÁ Reyes-Varela | 65 | 3 | |||||||||||||||||||||
 A Falla  A Krajicek | 4 | D O'Brien MÁ Reyes-Varela | 6 | 6 | |||||||||||||||||||||||
| A González LD Martínez | 6 | 68 | [12] | A González LD Martínez | 2 | 2 | |||||||||||||||||||||
| WC | D Garza T Hank | 4 | 710 | [10] | 1 | S González M Pavić | 6 | 3 | [13] | ||||||||||||||||||
N Barrientos  A Molteni | 6 | 1 | [1] | 3 | S Groth L Paes | 4 | 6 | [11] | |||||||||||||||||||
 A Ghem F Neis | 3 | 6 | [10] | A Ghem F Neis | 65 | 4 | |||||||||||||||||||||
J Souza  Y Sugita | 2 | 6 | [10] | 3 | S Groth L Paes | 77 | 6 | ||||||||||||||||||||
| 3 | S Groth L Paes | 6 | 4 | [12] | 3 | S Groth L Paes | 77 | 710 | |||||||||||||||||||
 M Arévalo  S Galdós | 6 | 6 | 2 | M Daniell A Sitak | 62 | 68 | |||||||||||||||||||||
| WC | Mauricio Astorga M Sánchez | 4 | 4 | M Arévalo S Galdós | 2 | 3 | |||||||||||||||||||||
| WC | H Hach Verdugo L Patiño | 4 | 79 | [4] | 2 | M Daniell A Sitak | 6 | 6 | |||||||||||||||||||
| 2 | M Daniell A Sitak | 6 | 67 | [10] | |||||||||||||||||||||||
Bob Bryan and Mike Bryan were the defending champions, but lost in the semifinals to Leander Paes and Radek Štěpánek. The loss ended the Bryan brothers' bid to win a calendar grand slam.
Benoît Paire and Stanislas Wawrinka were the defending champions, but lost in the first round to top seeds Rohan Bopanna and Aisam-ul-Haq Qureshi.
Johan Brunström and Frederik Nielsen won the title, defeating Marin Draganja and Mate Pavić in the final, 6–2, 4–6, [10–7].
Bob and Mike Bryan successfully defended their title, defeating Raven Klaasen and Leander Paes in the final, 6–3, 3–6, [10–6].
Chris Guccione and Lleyton Hewitt were the defending champions, but Hewitt chose to participate in the Davis Cup quarterfinals instead. Guccione played alongside Matthew Ebden, but lost in the first round to Johan Brunström and Marcelo Demoliner.
Jonathan Marray and Aisam-ul-Haq Qureshi won the title, defeating Nicholas Monroe and Mate Pavić in the final, 4–6, 6–3, [10–8].
Sania Mirza and Bruno Soares were the defending champions but lost in the first round to Andrea Hlaváčková and Łukasz Kubot.
Austin Krajicek and Rajeev Ram were the defending champions but chose not to participate.
Sanchai and Sonchat Ratiwatana were the defending champions but lost in the final to Sam Groth and Leander Paes 4–6, 6–1, [10–7].
Dominic Inglot and Robert Lindstedt were the defending champions, but chose not to participate together. Inglot played alongside Marin Draganja, but lost in the quarterfinals to Lindstedt and Aisam-ul-Haq Qureshi. Lindstedt and Qureshi then lost in the semifinals to Andre Begemann and Leander Paes.
Mariusz Fyrstenberg and Santiago González were the two-time defending champions, but Fyrstenberg chose not to participate this year and González chose to compete in Buenos Aires instead.
Santiago González and Mate Pavić were the defending champions but only González chose to defend his title, partnering Artem Sitak. González lost in the first round to Marcelo Arévalo and Fabrício Neis.
Johan Brunström and Andreas Siljeström were the defending champions but chose not to defend their title.
This was the first edition of the tournament.
Sam Groth and Chris Guccione were the defending champions, but Guccione chose not to participate this year. Groth played alongside Leander Paes, but lost in the semifinals to Aisam-ul-Haq Qureshi and Rajeev Ram.
Jamie Murray and Bruno Soares were the defending champions, but lost in the quarterfinals to Jean-Julien Rojer and Horia Tecău.
David O'Hare and Joe Salisbury were the defending champions but only Salisbury chose to defend his title, partnering Leander Paes. Salisbury lost in the final to Jeevan Nedunchezhiyan and Christopher Rungkat.
Jonathan Erlich and Aisam-ul-Haq Qureshi were the defending champions but chose not to participate together. Erlich played alongside James Cerretani, but lost in the first round to Guido Pella and João Sousa. Qureshi teamed up with Santiago González and lost in the semifinals to Ivan Dodig and Mate Pavić.
Oliver Marach and Mate Pavić were the defending champions, and successfully defended their title, defeating Matthew Ebden and Robert Lindstedt in the final, 6–4, 6–4.
Austin Krajicek and Jeevan Nedunchezhiyan were the defending champions but only Nedunchezhiyan chose to defend his title, partnering Purav Raja. Nedunchezhiyan lost in the semifinals to Marcus Daniell and Leander Paes.
Jonathan Erlich and Artem Sitak were the defending champions, but lost in the first round to Marcel Granollers and Sergiy Stakhovsky.
Ivan Dodig and Mate Pavić were the defending champions, but Pavić chose not to participate this year. Dodig played alongside Filip Polášek, but lost in the semifinals to Jonathan Erlich and Fabrice Martin.