Shigeru Ishiba (?? ?, Ishiba Shigeru, born 4 February 1957) is a Japanese politician.
Ishiba is a member of the Liberal Democratic Party (LDP) and of Heisei-Kenkyukai (part of the party faction led by Fukushiro Nukaga) until 2011.
He was Director General of the Japan Defense Agency from 2002-2004, Minister of Defense from 2007 to 2008 and was also Minister of Agriculture, Forestry and Fisheries.
The LDP lost government in 2009, and in 2012 after challenging for the presidency of the LDP and losing to Shinzo Abe he accepted the position of Secretary-General of the LDP on 27 September 2012.
Since 3 September 2014 he has served in cabinet as minister overseeing regional economic revitalization and policies aimed at reversing population decline.