The genome size is 2.03 Mbp, G+C percentage is 55.98%, with 99.77% completeness and 0.45% contamination. The closest relative to strain CLA-AA-H311 was Bifidobacterium pseudocatenulatum (99.07%) based on 16S rRNA gene analysis. However, ANI comparison identified strain CLA-AA-H311 as a novel species within the genus Bifidobacterium, with an ANI value of 93.18% against the closest relative B. pseudocatenulatum. GTDB-Tk classification as ‘Bifidobacterium sp002742445’ confirmed the proposition of a novel species. Placement within the genus Bifidobacterium was confirmed by the presence of fructose-6-phosphate phosphoketolase (KO1621). Functional analysis showed the strain has 90 transporters, 20 secretion genes, and predicted utilization of starch and production of propionate, acetate, and folate. In total, 137 CAZymes were identified, with 28 different glycoside hydrolase families and 11 glycoside transferase families represented. The strain CLA-AA-H311 (phylum Actinomycetota, family Bifidobacteriaceae) was isolated from human faeces.