Percy Joseph Marks (11 December 1867 – 22 June 1941) was an Australian Jewish solicitor and historian.

His younger brother was Ernest Samuel Marks, Lord Mayor of Sydney.

Marks was active within the Jewish community and worshipped at the Great Synagogue in Sydney.

[4] He was sometime joint editor, with Sir Daniel Levy, of the New South Wales Hebrew Standard.

[2] A significant collection of Judaica gathered by him was left to the State Library of New South Wales by his brother Ernest.