2021 Rafa Nadal Open

The 2021 Rafa Nadal Open was a professional tennis tournament played on hard courts. It was the third edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Manacor, Spain between 30 August and 5 September 2021.

Seeds

 * 1 Rankings are as of 23 August 2021.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇪🇸 Nicolás Álvarez Varona
 * 🇪🇸 Carlos Gómez-Herrera
 * 🇪🇸 Daniel Rincón

The following players received entry into the singles main draw as alternates:
 * 🇷🇺 Evgeny Karlovskiy
 * 🇺🇸 Stefan Kozlov
 * 🇨🇴 Nicolás Mejía
 * 🇯🇵 Hiroki Moriya
 * 🇪🇸 Roberto Ortega Olmedo
 * 🇪🇨 Roberto Quiroz

The following players received entry from the qualifying draw:
 * 🇺🇸 Nick Chappell
 * 🇧🇪 Michael Geerts
 * 🇨🇴 Alejandro González
 * 🇩🇪 Johannes Härteis

The following players received entry as lucky losers:
 * 🇺🇸 Nicolas Moreno de Alboran
 * 🇵🇱 Jan Zieliński

Singles

 * 🇸🇰 Lukáš Lacko def. 🇯🇵 Yasutaka Uchiyama 5–7, 7–6(10–8), 6–1.

Doubles

 * 🇵🇱 Karol Drzewiecki / 🇪🇸 Sergio Martos Gornés def. 🇧🇷 Fernando Romboli / 🇵🇱 Jan Zieliński 6–4, 4–6, [10–3].