Black Dog, a minor character in Robert Louis Stevenson's novel Treasure Island

Black dog, Winston Churchill's name for his clinical depression

Black dog (ghost), a ghostly dog in British folklore

BlackDog, a mobilizing device, a fully self-contained computer

"Black Dog" (song), a song by Led Zeppelin from Led Zeppelin IV

Black Dog (film), a 1998 film

Black Dog & Leventhal, an imprint of the Workman Publishing Company

Black Dog Productions, a British electronica group

Black Dog Game Studio, an imprint of White Wolf Game Studio

Black Dog Publishing, a UK publisher

The Black Dog, a restaurant on the island of Martha's Vineyard