Vacerrena

{{Short description|Genus of gastropods}}

{{Automatic taxobox

| image = Vacerrena nana (MNHN-IM-2000-4776).jpeg

| image_caption = Shell of Vacerrena nana

| taxon = Vacerrena

| authority = Iredale, 1958

| type_species = Puncturella demissa

| type_species_authority = Hedley, 1904

| synonyms_ref = {{cite WoRMS |title=Vacerrena |id=849295 |access-date=17 January 2023}}

| synonyms =

• Puncturella (Vacerrena) Iredale, 1958
• Vacerra Iredale, 1924 (junior homonym of Vacerra Godman, 1900 in Lepidoptera; Vacerrena was the replacement name)

}}

Vacerrena is a small genus of sea snails in the family Fissurellidae, the keyhole limpets and slit limpets.