Clarence Isaac de Sola (August 15, 1858 – May 10, 1920) was a Canadian businessman, author and Zionist leader based in Montreal.
In 1887, De Sola became the Canadian agent for the Comptoir Belgo-Canadien, a syndicate of Belgian steel manufacturers and bridge and railway contractors.
It was De Sola's connection to Belgium, which led him to be became the Belgian consul in Montreal in 1905.
[1] Aside from his business ventures, De Sola was deeply involved in the Canadian Zionist cause.
His daughter Esther de Sola, married Sir John Ellerman, 2nd Baronet.