| Honorific-Prefix: | The Honourable |
| Joan Sheldon | |
| Order: | 26th |
| Office: | Deputy Premier of Queensland |
| Term Start: | 19 February 1996 |
| Term End: | 26 June 1998 |
| Premier: | Rob Borbidge |
| Predecessor: | Tom Burns |
| Successor: | Jim Elder |
| Office1: | Shadow Minister for Employment, Training and Industrial Relations |
| Term Start1: | 19 June 2000 |
| Term End1: | 17 February 2001 |
| Leader1: | Rob Borbidge |
| Predecessor1: | Santo Santoro |
| Successor1: | Vince Lester |
| Order2: | 42nd |
| Office2: | Treasurer of Queensland |
| Term Start2: | 19 February 1996 |
| Term End2: | 26 June 1998 |
| Premier2: | Rob Borbidge |
| Predecessor2: | Keith De Lacy |
| Successor2: | David Hamill |
| Office3: | Shadow Treasurer of Queensland |
| Term Start3: | 2 November 1992 |
| Term End3: | 19 February 1996 |
| Leader3: | Rob Borbidge |
| Predecessor3: | Doug Slack |
| Successor3: | David Hamill |
| Office4: | Deputy Leader of the Opposition in Queensland |
| Term Start4: | 2 November 1992 |
| Term End4: | 19 February 1996 |
| Leader4: | Rob Borbidge |
| Predecessor4: | Brian Littleproud |
| Successor4: | David Watson |
| Office5: | Leader of the Queensland Liberal Party Elections: 1992, 1995, 1998 |
| Deputy5: | David Watson (1991–1992) Santo Santoro (1992–1995) Denver Beanland (1995–1998) |
| Term Start5: | 11 November 1991 |
| Term End5: | 23 June 1998 |
| Predecessor5: | Denver Beanland |
| Successor5: | David Watson |
| Constituency Am6: | Caloundra Landsborough (1989–1992) |
| Assembly6: | Queensland Legislative |
| Term Start6: | 28 July 1990 |
| Term End6: | 7 February 2004 |
| Predecessor6: | Mike Ahern |
| Successor6: | Mark McArdle |
| Birth Date: | 29 April 1943 |
| Birth Place: | Bundaberg, Queensland |
| Party: | Liberal Party |
| Alma Mater: | University of Queensland |
| Occupation: | Physiotherapist |
Joan Mary Sheldon (born 29 April 1943) is an Australian politician. She was a Liberal Party member of the Legislative Assembly of Queensland from 1990 to 2004, representing the electorates of Landsborough (1990–1992) and then Caloundra (1992–2004).[1] She was the state Liberal leader from 1991 to 1998, and served as Deputy Premier in the Borbidge government from 1996 to 1998.[1]
Sheldon was born in Bundaberg, Queensland, and attended St Bernadette's Primary School and Soubirous College. She studied physiotherapy at the University of Queensland and subsequently studied for a time at Trinity College London. Sheldon operated a physiotherapy practice in Brisbane from 1978 to 1984, when she moved to Caloundra.[2]
A long-time member of the Liberal Party, she contested and won preselection for the National-held seat of Landsborough upon the 1990 resignation of former Premier Mike Ahern. She won an upset victory after Labor declined to stand a candidate, winning a 15% swing in her favour.[3] In November 1991, she defeated Denver Beanland for the Liberal leadership, becoming the first female party leader in Queensland.
An ally of Liberal state president Paul Everingham, she was seen as less hostile to the National Party than her predecessor.[4]
Sheldon led the party to a resounding defeat in the 1992 state election, losing a seat to Labor amidst high-profile tensions with the National Party.[5] [6]
She supported proposals for a merger or coalition in the wake of the loss, and subsequently led the Liberal Party back into coalition with the National Party in November 1992, after nine years apart.[7] [8]
She subsequently served as Shadow Treasurer under Borbidge in the lead-up to the 1995 state election, which resulted in a one-seat victory for Labor. The result was reversed in February 1996 when a court-ordered by-election resulted in a Liberal victory, and the Liberal-National Coalition gained office with the support of an independent. Sheldon was thus sworn in as Deputy Premier and Treasurer under Borbidge and became the first woman in Queensland to hold these roles. During the transition period of 19 to 26 February 1996, she held several ministries including Attorney-General.[9]
After the Borbidge Ministry lost office after the 1998 election Sheldon stood down as Liberal leader, with former deputy David Watson succeeding her.
She remained on the backbench until 1999 when she became Shadow Minister for The Arts, Fair Trading and Consumer Affairs which after June 2000 became Shadow Minister for Employment, Training and Industrial Relations and The Arts.
From when the Coalition agreement with the Nationals was reinstated in 1992 to her retirement from the assembly in February 2004, she served as Shadow Minister for Tourism and Shadow Minister for the Arts.
Sheldon was made a Member of the Order of Australia (AM) in the 2005 Australia Day Honours for "service to the Queensland Parliament, to support for a range of cultural organisations, and to issues affecting women".[10]