Solva is a village and community in Pembrokeshire, Wales, comprising principally Lower Solva and Upper Solva.
Solva was an early name for what is now Esztergom, Hungary, in the province of Pannonia, during the Roman period. It was an important part of the Limes line along the Danube. Solva was granted town rank by Publius Aelius Hadrianus in 121 AD.
Solva is a fly genus in the family Xylomyidae, the "wood soldier flies".