Coscinodiscaceae

{{Short description|Family of single-celled organisms}}

{{Unreferenced|date=April 2025}}

{{Automatic taxobox

| image = Coscinodiscus radiatus.jpg

| image_caption = Coscinodiscus radiatus

| taxon = Coscinodiscaceae

| authority = Kützing, 1844

| type_genus = Coscinodiscus

| type_genus_authority = Ehrenberg, 1839

| subdivision_ranks = Genera

| subdivision = Brightwellia
Coscinodiscus
Craspedodiscus
Palmeria
Palmerina
Stellarima

}}

Coscinodiscaceae is a diatom family in the order Coscinodiscales.