| Dates: | 18–23 May |
| Number Edition: | 4th |
| Level: | G2L5 |
| Prize Money: | 140000 |
| Venue: | Palacio de los Deportes Carolina Marín |
| Location: | Huelva, Spain |
| Ms: | Toma Junior Popov |
| Country Ms: | FRA |
| Ws: | Putri Kusuma Wardani |
| Country Ws: | INA |
| Md1: | Pramudya Kusumawardana |
| Country Md1: | INA |
| Md2: | Yeremia Rambitan |
| Country Md2: | INA |
| Wd1: | Yulfira Barkah |
| Country Wd1: | INA |
| Wd2: | Febby Valencia Dwijayanti Gani |
| Country Wd2: | INA |
| Xd1: | Rinov Rivaldy |
| Country Xd1: | INA |
| Xd2: | Pitha Haningtyas Mentari |
| Country Xd2: | INA |
| Previous: | 2020 |
| Next: | 2023 |
The 2021 Spain Masters was a badminton tournament which was held at the Palacio de los Deportes Carolina Marín in Huelva, Spain, from 18 to 23 May 2021 with a total prize purse of $140,000.
The 2021 Spain Masters was the fourth tournament of the 2021 BWF World Tour and also part of the Spain Masters championships, which had been held since 2018. This tournament was organized by the Spanish Badminton Federation and sanctioned by the BWF.[1]
This international tournament was held at the Palacio de los Deportes Carolina Marín in Huelva, Spain.[1]
Below is the point distribution table for each phase of the tournament based on the BWF points system for the BWF World Tour Super 300 event.[2]
The total prize money for this tournament was US$140,000. Distribution of prize money was in accordance with BWF regulations.[1]
| Event | Winner | Finals | Semi-finals | Last 16 | ||
| Singles | $10,500 | $5,320 | $2,030 | $840 | $490 | |
| Doubles | $11,060 | $5,320 | $1,960 | $1,015 | $525 |
Toma Junior Popov (champion)
Misha Zilberman (quarter-finals)
Subhankar Dey (withdrew)
Pablo Abián (second round)
Ygor Coelho de Oliveira (quarter-finals) Ajay Jayaram (withdrew)
Felix Burestedt (second round) Carolina Marín (withdrew)
Lianne Tan (quarter-finals)
Kristin Kuuba (second round) Christo Popov / Toma Junior Popov (semi-finals)
Anastasiia Akchurina / Olga Morozova (withdrew) Kati-Kreet Marran / Helina Rüütel (second round) Léa Palermo (second round) Evgenij Dremin / Evgenia Dimova (withdrew) Fabien Delrue / Léa Palermo (second round) Eloi Adam / Margot Lambert (first round)