Streptococcus bovis is a group of strains of Gram-positive bacteria, originally described as a species,[5][6] that in humans is associated with urinary tract infections, endocarditis, sepsis,[7] and colorectal cancer.

Isolates from the S. bovis group are most frequently encountered in blood cultures from patients with colon cancer.

[citation needed] S. bovis is a catalase-negative and oxidase-negative, nonmotile, non-sporulating, Gram-positive lactic acid bacterium that grows as pairs or chains of cocci.

[13] S. bovis is a human pathogen that has been implicated as a causative agent of endocarditis,[7] urinary tract infections, and more rarely, sepsis and neonatal meningitis.

[19] When ruminants consume diets high in starch or sugar, these easily fermentable carbohydrates promote the proliferation of S. bovis in the rumen.