BFDI may refer to:
- Battle for Dream Island, the first season of the BFDI series
- Battle for Dream Island (series), the series in general
- Blocky's Funny Doings International, a prank show established by Blocky that has the acronym BFDI
- A BFDI, the supposed prize for winning Battle for BFDI
- Buried Forest, Deciduously Insulated, a location deep inside the Earth that also has the acronym BFDI
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