Ernst-Reinhard Beck (born 31 August 1945 in Stetten am kalten Markt, Baden-Württemberg) is a German politician and member of the conservative CDU.
A secondary school teacher by profession and former principal, Beck was a directly elected member of the Bundestag between 2002 and 2013, serving for the electoral district of Reutlingen.
Beck was spokesman on defense policy for the fraction of the Christian Democrats and chairman of the curators of the Bundeszentrale für politische Bildung.
Beck holds the rank of Colonel (retired) in the Army Reserves of the Bundeswehr. He has been president of the Verband der Reservisten der Deutschen Bundeswehr (German Reservist's Association) from 2003 until 2009. Beck is married since 1971. His brother Michael Beck is the mayor of Tuttlingen.