Haplosclerida

{{Short description|Order of sponges}}

{{Automatic taxobox

| image = Callyspongia crassa 3 at Shaab Claudia.JPG

| image_caption = Callyspongia crassa

| taxon = Haplosclerida

| authority = Topsent, 1928

| subdivision_ranks = Families

| subdivision = See text

}}

Haplosclerida is an order of demosponges. It contains the following families:{{Cite web|title=WoRMS - World Register of Marine Species - Haplosclerida|url=http://www.marinespecies.org/aphia.php?p=taxdetails&id=131598|access-date=2021-11-05|website=www.marinespecies.org|language=en}}

• Calcifibrospongiidae Hartman, 1979
• Callyspongiidae de Laubenfels, 1936
• Chalinidae Gray, 1867
• Niphatidae Van Soest, 1980
• Petrosiidae Van Soest, 1980
• Phloeodictyidae Carter, 1882