Spanish Box Office For March 2021
| Rank | Release | Gross | Max Th | Opening | % of Total | Open Th | Open | Close | Distributor |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Godzilla vs. Kong | $7,600,000 | 146 | - | - | - | Mar 26 | - | Warner Bros. |
| 2 | Tom & Jerry | $3,206,678 | 160 | - | - | - | Mar 26 | - | Warner Bros. |
| 3 | Raya and the Last Dragon | $2,944,461 | 149 | $328,334 | 11.2% | - | Mar 5 | - | Walt Disney Pictures |
| 4 | Nomadland | $2,753,594 | 91 | - | - | - | Mar 26 | - | Walt Disney Pictures |
| 5 | The Mole Agent | $189,818 | 2 | - | - | - | Mar 19 | - | BTeam Pictures |
| 6 | Nación | $20,541 | 14 | - | - | - | Mar 26 | - | - |
| 7 | Yesterday's Two Nights | $12,889 | 1 | - | - | - | Mar 12 | - | Splendor Films |
| 8 | Quince | $12,119 | 4 | - | - | - | Mar 19 | - | Independent Films |
| 9 | Olvido y León | $5,280 | 1 | - | - | - | Mar 26 | - | - |
| 10 | La Cumbre es el Camino | $1,132 | 1 | - | - | - | Mar 26 | - | Independent Films |
| 11 | Ez, eskerrik asko! Gladysen leihoa | $584 | 1 | - | - | - | Mar 26 | - | - |
