Cimmeria

Cimmerians, an ancient people who lived in the south of modern-day Ukraine and Russia in the 8th and 7th century BC
Cimmeria, an ancient name of the Crimea, a peninsula in the North part of Black Sea, or the Eastern part thereof
Cimmeria (continent), an ancient microcontinent separating the ancient Paleo-Tethys and Neo-Tethys oceans
Cimmeria (Calvino), a fictional country in If On a Winter's Night a Traveler by Italo Calvino
Cimmeria (Conan), a fictional country in Conan the Barbarian
Cimmeria (Stargate), a fictional planet in the Stargate setting
"Cimmeria" (poem), a poem by Robert E. Howard