They were arrested for possession of Class B drug and possession of Class B with intent to supply following a house search in the Blalymagroarty area.
Both were later released on bail pending forensic examination of drugs, mobile telephone and a laptop.
Meanwhile, a 22-year-old man and a 16-year-old juvenile have been arrested in Derry on suspicion of burglary.
The 22-year-old was charged to Drry Magistrates Court today following an alleged offence at Woodbrook, Galliagh, on Sunday.
The juvenile was released on bail pending further enquires.