Escherichia hermannii is a Gram-negative, rod-shaped species of bacterium.

Strains of this species were originally isolated from human wounds, sputum, and stool.

The species is named for American microbiologists George J. Hermann and Lloyd G.

[2] The LPSN considers the new name a synonym, not validly published (i.e. made outside of IJSB and IJSEM) under the ICNP.

[4][5] E. hermannii is generally considered nonpathogenic but has been isolated from human wounds,[6] eye infections,[7][8] and blood.