Gennaro \ge-nna-ro\ as a boy's name is of Italian origin, and the meaning of Gennaro is "of Janus". Janus was an ancient Roman god.

Gennaro has 4 variant forms: Gennarius, Gennaros, Januario and Januarius.

Baby names that sound like Gennaro are Jennaro, Gunnar and Jenaro.