Sidus may refer to:
*
Sidus (Corinthia), a village of ancient Corinthia
*
Sidus (Ionia), a town of ancient Ionia
*
SidusHQ, South Korean talent management agency
*
Sidus Pictures, South Korean film production and distribution company
See also
*
Sidera (disambiguation)
Sidera can be:
Sidera
* '' Sidera'', a genus of fungi
* Seleucia Sidera, ancient city in the northern part of Pisidia, Anatolia
* Cosmica Sidera, initial name for Galilean moons
* Sidera Lodoicea, name given by the astronomer Giovanni Domenico ...
; "sidera" is the plural for the ''Latin'' "sidus"
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