Solva (Welsh: Solfach) is a village, community and electoral ward in Pembrokeshire, Wales. The village comprises principally Lower Solva and Upper Solva. The community also includes Middle Mill and Whitchurch.

Solva lies on the north side of St Bride's Bay, in North Pembrokeshire in the Pembrokeshire Coast National Park and on the Pembrokeshire Coast Path. It lies on a deep valley at the mouth of the River Solva. In the valley is Lower Solva, consisting of a long street ending at the small harbour. Most of the modern development has been in Upper Solva, on the cliff top to the west of the harbour.

The rocks at the entrance to Solva Harbour made it one of the most sheltered anchorages between Fishguard and Milford Haven; it was marked on a 1578 parish map of Pembrokeshire as Dolvath Haven. On a 1748 map it is named Solvach.

Solva became the main trading centre of St Bride's Bay in the medieval period, and was important for lime burning. A prominent row of lime kilns is preserved at the harbour edge. By the end of the 18th century Solva had begun to expand, and could accommodate vessels of 500 tons, or up to 1,000 in an emergency. Some 30 vessels were registered to the port at this time, though this number reduced during the 19th century, and during the 19th century, Solva had an RNLI lifeboat station. The fading coastal trade was replaced by tourism, and the harbour became a leisure boating centre.

In 1943 the RAF established an airfield, named RAF St Davids, but which now lies within Solva community. The area was the subject of an archaeological survey in 2000.

The village was the location for Wales's first butterfly farm, Solva Nectarium, which opened in 1979.

The population of the community was 865 at the 2011 Census. As of 2019, it is estimated that the population has increased to 869.

According to the United Kingdom Census 2011, 30.7% of the community of Solva could speak Welsh.