Joseph William Ludwig (born 21 July 1959) is an Australian barrister and retired politician.

Ludwig began his career as an Industrial Inspector and Training Consultant, before moving to the Queensland Branch of the Australian Workers' Union.

He was promoted to Shadow Attorney-General and Manager of Opposition Business in March 2007 following the resignation of Kelvin Thomson.

He has been responsible for negotiating additional assistance measures directly with the Queensland Government and local councils.

[8] In May the National Drought Reform Program agreement was signed between the Federal Government and all states and territories, bringing long standing discussions to a close.

[10] Ludwig resigned from the Cabinet following the June 2013 leadership spill after supporting Julia Gillard.