2021 will be a common year starting on Friday of the Gregorian calendar. This year a third movie (The SpongeBob Movie: Sponge on the Run) was previously released in theaters last year but then it moved to digital release due to the ongoing pandemic.
| Date | Event(s) |
|---|---|
| Unknown date | The SpongeBob Movie: Sponge on the Run will be released on VOD and CBS All Access. |
| Unknown date | Kamp Koral: SpongeBob's Under Years will premiere on CBS All Access. |
| May 1 | The SpongeBob SquarePants series will become 22 years old. |