Lauro Pereira Travassos (2 July 1890 – 20 November 1970) was a Brazilian parasitologist.
He collected helminth specimens from across South America and studied their life-histories.
He studied medicine at Rio de Janeiro and his first work was on Linguatula serrata in the intestine of a patient.
He then worked at the Instituto Oswaldo Cruz which was then called the Manguinhos under José Gomes de Faria.
[2] Travassos married Odete with whom he had four children including Lauro who became an entomologist and Haroldo who became an ichthyologist.