Hirohisa Fujii (藤井 裕久, Fujii Hirohisa?, born June 24, 1932) is a Japanese politician who is a member of the House of Representatives in the Diet (national legislature) and Secretary General of the Democratic Party of Japan (DPJ). A native of Tokyo, graduate of the University of Tokyo and former official of the Ministry of Finance, he was elected to the House of Councilors for the first time in 1977 as a member of the Liberal Democratic Party. In 1993 he joined the formation of the Japan Renewal Party, which later became part of DPJ.
In September 2009 he became the Minister of Finance after the election of Yukio Hatoyama as Prime Minister.
Fujii abruptly announced his resignation as Finance Minister on January 5, 2010, and it was reluctantly accepted by Prime Minister Hatoyoma a day later. Fujii had been suffering from high blood pressure and exhaustion, so he claimed that his deteriorating health forced him to resign from the high-stress position of Finance Minister. However, some Japanese political analysts believe that Fujii lost a power struggle with Democratic Party of Japan chairman Ichirō Ozawa, and henceforth resigned.