Bacteroidaceae

{{Short description|Family of bacteria}}

{{Automatic taxobox

| image = Bacteroides biacutis 01.jpg

| image_alt = "Bacteroides biacutis" anaerobically cultured in blood agar medium

| image_caption = Bacteroides biacutis anaerobically cultured in blood agar medium

| taxon = Bacteroidaceae

| authority = Pribram 1933 (Approved Lists 1980){{cite book | vauthors = Pribram E | title = Klassification der Schizomyceten | publisher = F. Deuticke | location = Leipzig | year = 1933}}

| subdivision_ranks = Genera

| subdivision_ref = {{cite web | vauthors = Euzéby JP, Parte AC | url = https://lpsn.dsmz.de/family/bacteroidaceae | title = Bacteroidaceae | access-date = June 28, 2021 | publisher = List of Prokaryotic names with Standing in Nomenclature (LPSN)}}{{cite journal |last1=Parker |first1=Charles Thomas |last2=Osier |first2=Nicole Danielle |last3=Garrity |first3=George M |editor-first1=Charles Thomas |editor-first2=George M |editor-last1=Parker |editor-last2=Garrity |title=Taxonomic Abstract for the families. |date=27 April 2009 |doi=10.1601/tx.7930 |publisher=NamesforLife, LLC |language=en}}

| subdivision =

• Acetofilamentum Dietrich et al. 1989
• Acetothermus Dietrich et al. 1988
• Bacteroides Castellani and Chalmers 1919 (Approved Lists 1980)
• Capsularis Prévot 1938 (Approved Lists 1980)
• "Desulfoarculus" Schnell et al. 1991
• "Fusocillus" Prevot 1938
• "Massilibacteroides" Jneid et al. 2018
• Phocaeicola Al Masalma et al. 2009
• "Ristella" Prevot 1938
• "Sphaerophorus" Bergan and Hovig 1968
• "Spherophorus" Prevot 1938

| synonyms =

• "Ristellaceae" Prevot 1938
• "Spherophoraceae" Prevot 1938

| synonyms_ref =

}}

The Bacteroidaceae are a family of environmental gram-negative bacteria commonly found in the human gut microbiota.Bergey's Manual of Systematic Bacteriology, 2nd ed., vol. 1 (The Archaea and the deeply branching and phototrophic Bacteria) (D.R. Boone and R.W. Castenholz, eds.), Springer-Verlag, New York (2001). pp. 465-466.