Gynnidomorpha vectisana, the small saltern conch, is a moth of the family Tortricidae.

It is found in China (Henan, Jiangxi, Jilin, Xinjiang), Japan, Korea,[3] Ireland, Great Britain, Scandinavia, the Benelux, Germany, the Czech Republic, Slovakia, Hungary, Romania, Switzerland, Austria, Italy, Spain, the Baltic region and Russia.

The habitat consists of saltmarshes, fens, wet heathland and freshwater marshes.

[6][7] Adults are on wing from late May to June and again from July to September in two generations per year.

The larvae feed on Plantago maritima, Triglochin palustris and Salicornia species.