Denis James Hart (born 16 May 1941) is a retired Australian prelate of the Catholic Church.

On 29 June 2001, he received the pallium from Pope John Paul II in St Peter's Square.

In 2007, Hart expressed that he was troubled by the remarks of St Patrick's Cathedral priest Geoff Baron.

"These are quite often emotional situations and it's very important that we always have respect for the dignity of the human being involved", he said when Fairfax asked for his response to a previously unreported case at the Academy of Mary Immaculate in Fitzroy.

[8] In 2009 during a court case, Hart was accused of having told a woman to "Go to hell, bitch" when she had knocked on his door in the middle of the night in 2004.

[9][10] On the ABC on 14 November 2013, Hart acknowledged making the comment, then immediately asserting that he always followed the teachings of the Roman Catholic Church.