A Bronx man was indicted on murder and manslaughter charges in the beating death of his girlfriend’s 2-year-old son, officials announced Wednesday.

Kenneth Lynch, 36, was arrested after police found Messiah Allen unconscious with broken teeth, and bruises on his face and body, inside the apartment Lynch and the tot’s mom shared at the Sotomayor Houses in Soundview in May.

Allen’s mom was at work at the time of the incident.

“The defendant allegedly beat the defenseless toddler while he was supposed to be taking care of the boy,” Bronx Distirct Attorney Darcel Clark said adding, “The child received multiple blunt force injuries to the body. The fatal blows were those inflicted in the toddler’s torso, which led to a transected liver.”

Lynch — who was arraigned in Bronx Supreme Court today — was held without bail and is due back in court on Nov. 13.