Juan Manuel Canaveris (1804-1868) was an Argentine jurist and politician, who served in Buenos Aires and Montevideo as attorney, teacher and military man.

He was enlisted as a cadet in the Argentine Army in 1819, serving in the Regimiento Húsares de la Unión and Dragones Nueva Creacion.

It is very likely that Juan Manuel Canaveris has taken part in the warlike conflicts between the armies of the Central Government of Buenos Aires and the Liga de los Pueblos Libres.

He belonged to the faction of the Federal party called as "Lomos Negros",[9] a political group who opposed the granting of extraordinary powers to Rosas as governor of Buenos Aires.

[10] Due to political issues Canaveris was forced into exile in Montevideo, where took part in meetings organized by Juan Bautista Alberdi and Valentín Alsina, about the French blockade of the Río de la Plata.

As a supporter of the Uruguayan National Party, he opposed several Colorado leaders such as Melchor Pacheco y Obes and Joaquín Suárez, with whom he had a personal dispute.

[20] His business was located in the vicinity of the imprenta of Esteban Hallet and the Faunch Hotel, the main English inn of the city, and where later was established the Bank of London and Río de la Plata.

[21] He also dedicated himself to buying and selling land and renting properties, in 1826 he acquired hectares near the Salado River, current town of Bragado.

[22] He leased part of his property to several members of the Anglo-Argentine community of Buenos Aires, such as John Laing and Mathew Fouster, from Edinburgh and Dublin.

[23] His property had been the lodging of various members of the British community since the late colonial period, including Florence "Macarte", an Irish Catholic,[24] who served under the orders William Beresford, during the first English Invasion.

[29] Among his jobs as an entrepreneur is his participation as a shareholder for the construction of the Solís Theatre of Montevideo, built by the Italian architect Carlo Zucchi in 1856.

[35] He was also the father of Ángel Canaveris Gutiérrez, a prestigious psychiatrist born in Genoa, who had a long career as head of public hospitals in the Banda Oriental.

[41] His house was in front of the Hotel Hibernia, an Irish establishment owned by John Geoghegan,[42] that operated on Calle de la Piedad No.