Placynthiaceae

{{Short description|Family of fungi}}

{{Automatic taxobox

| image = Placynthium nigrum-2.jpg

| image_caption = Herbarium specimen of Placynthium nigrum

| taxon = Placynthiaceae

| authority = Å.E.Dahl (1950)

| type_genus = Placynthium (Ach.) Gray

| subdivision_ranks = Genera

| subdivision =

}}

The Placynthiaceae are a lichenized family of fungi in the order Peltigerales. Species of this family are found largely in northern temperate regions.{{cite book |vauthors=Cannon PF, Kirk PM |title=Fungal Families of the World |publisher=CABI|location=Wallingford|year=2007 |page=284 |isbn=978-0-85199-827-5 }}