2021 Mallorca Championships – Singles
| Singles | |
|---|---|
| 2021 Mallorca Championships | |
| Champion | Daniil Medvedev |
| Runner-up | Sam Querrey |
| Score | 6–4, 6–2 |
| Draw | 28 (4 Q / 3 WC ) |
| Seeds | 8 |
Daniil Medvedev defeated Sam Querrey in the final, 6–4, 6–2, to win the singles tennis title at the 2021 Mallorca Championships. It was Medvedev's first career grass court final. Querrey was contesting for his first title in four years.
This was the inaugural edition of the tournament.