Jafar Towfighi Darian ( Persian : جعفر توفیقی داریان ; born 19 March 1956) is an Iranian chemical engineer, academic, politician and senior consultant of the ministry of science, research and technology who served as minister of science, research and technology for two terms. First in the cabinet headed by President Mohammad Khatami from 2003 till 2005, and second in 2013 as acting minister.