Aristide Cavallari (8 February 1849 – 24 November 1914) was a Cardinal of the Roman Catholic Church who served as Patriarch of Venice.

He was ordained to the priesthood on 27 September 1872 by Cardinal Giuseppe Luigi Trevisanato, then Patriarch of Venice.

While the search for a new Patriarch was ongoing, Cavallari was named vicar general of Venice in January 1904.

He exercised these offices until he himself was promoted to the patriarchal see of Venice on 15 April 1904 to fill the vacancy left by the election of Pius X.

[3] He was created Cardinal-Priest of Santa Maria in Cosmedin (deaconry elevated pro hac vice to title) in the consistory of 15 April 1907; he participated in the conclave of 1914 that elected Pope Benedict XV.