Juan José Canaveris (1780–1837) was an Argentine jurist and politician, who served as military man, lawyer, notary, prosecutor and accountant of Buenos Aires.

For his heroic actions during the invasions Canaveris was awarded by order of the Supreme Junta of Seville, who in the name of Ferdinand VII of Spain, he was promoted to the rank of Captain of the Militias.

[7] In 1826 he was entrusted by the Captain José María Palomeque with the arrangements for the sale of a farm located in the town of Quilmes, published on September 23 of this year by La Gaceta Mercantil.

He began his career as a lawyer towards the end of the colonial period, taking an active part in litigation matters,[10] including his services to Colonel Francisco Montes Larrea, a respectable military man, who had suffered an assault in the Fonda de los Tres Reyes.

[19] The Viamonte meeting took place during his second term as governor of Buenos Aires, and it is mentioned in the personal correspondence of Encarnación Ezcurra to her husband Juan Manuel de Rosas.

[20] In 1830, Canaveris served in the Inspección and Comandancia General de Armas, taking an active part in the enrollment of volunteers to be incorporated into the Regiment of Patricians.

In 1835, he published several notices in the Weekly British Packet, and Argentine News, offering his services as a lawyer and accountant to the American and Anglo-Argentine community of Buenos Aires.

[27] He was neighbor of Vicente Anastasio Echevarría (colonial period), and by a large number of English and Irish people installed in the neighborhood, including Edmundo Cranwell.

His idiosyncrasy and that of his brothers and family was not at all like the French or Italian community of the colonial and post-colonial period of Buenos Aires, and it is quite possible that their paternal ancestors were of noble or bourgeois origin.