Dwyka may refer to:
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Dwyka River
The Dwyka River is located in the Karoo region, in South Africa. It flows from the North-west, joining the Gamka River as a tributary at the Gamka Dam.
In the 1870s, the Cape Colony government expanded its railway network inland, towards the diam ...
, a river in the Karoo region of South Africa
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Dwyka Group
The Dwyka Group is one of four geological groups that compose the Karoo Supergroup. It is the lowermost geological group and heralds the commencement of sedimentation of the Karoo Supergroup. Based on stratigraphic position, lithostratigraphic co ...
, a group of sedimentary geological formations in Southern Africa
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