Gaetano de Gennaro (Naples, 1 May 1890 — São Paulo, 21 May 1959) was an Italian-Brazilian artist, sculptor.

Gaetano de Gennaro was born in Naples in 1890 and died in São Paulo, Brazil in 1959.

He studied sculpture in Grenoble with Urban Basset and at the College of Decorative Arts in Nice.

During his life he lived in Italy, Switzerland, France, England, Ireland and Brazil.

Some of his pastel portraits were included in the April 1943 Royal Hibernian Academy's An Exclusive Exhibition where Thomas MacGreevy compared his work to the earlier 20th century artists Philip de László and Jean Boldini.