Alistipes finegoldii is a bacterium from the genus of Alistipes which has been isolated from appendix tissue from a human from Helsinki in Finland. The species is named in honor of Sydney M. Finegold. A. finegoldii is a gram negative straight rod shaped bacterium commonly found in the human gut biome that grows anaerobically.Mavromatis, K., Stackebrandt, E., Munk, C., Lapidus, A., Nolan, M., Lucas, S., ... & Woyke, T. (2013). Complete genome sequence of the bile-resistant pigment-producing anaerobe Alistipes finegoldii type strain (AHN2437 T). Standards in genomic sciences, 8, 26-36. The general size ranges from 0.8 to 2 micrometers in length with rounded ends.

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