D block, Block D, or variants, may refer to:
- d-block, a division of the periodic table of elements
- D-Block Records, a hip-hop record label
- D-Block at Alcatraz Federal Penitentiary
- Block D, a Soviet rocket stage
- Block D, a portion of the United States 2008 wireless spectrum auction that was not sold during the auction
This disambiguation page lists articles associated with the title D block.
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If an internal link led you here, you may wish to change the link to point directly to the intended article.