Masako Mori (? ???, Mori Masako, born August 22, 1964) is a Japanese politician of the Liberal Democratic Party, a member of the House of Councillors in the Diet (national legislature).
She was elected to the House of Councillors for the first time in 2007 after running unsuccessfully for governor of Fukushima Prefecture in 2006.
Her real name is Masako Miyoshi (?? ??, Miyoshi Masako).
She is the current Minister of Justice since 31 October 2019.