Bradley James Haddin (born 23 October 1977 in Cowra, New South Wales), is a former Australian cricketer who has represented Australia in all three forms of international cricket (Test, One-Day International and Twenty20 International). He also plays for the New South Wales Blues in both domestic first class and list A cricket. Haddin is a right-handed batsman and wicket-keeper. He was a member of the Australian World cup winning squad at the 2015 Cricket World Cup. He retired from One Day International Cricket on 17 May 2015, soon after the 2015 Cricket World Cup. He also became the ambassador for his home ground, Sydney Cricket Ground (SCG) along with Steven Smith. Haddin announced his retirement from international and first class cricket with New South Wales on 9 September 2015. Haddin has retired from the BBL.
Haddin's family moved to Queanbeyan in 1989 when he was 12 and he played for the Queanbeyan District Cricket Club Juniors to the age of 15 before joining the Australian National University (ANU) Grade Cricket Club, representing 1st grade at age 16. Haddin was selected in the first ever Mercantile Mutual Cup season of 1997–98 for the ACT Comets, with whom he began his professional cricketing career. In the 1999–2000 season, he began playing for the New South Wales Blues to pursue further cricketing opportunities. Since then, he has produced several memorable batting innings, including a top score of 133 against Victoria. Haddin was signed by Chennai Super Kings in the 2010 IPL. In the 2011 Indian Premier League season, Haddin was contracted by Kolkata Knight Riders for US$325,000.
On 26 September 2012, Haddin scored a century in a Sheffield Shield match against Tasmania at the Bankstown Oval, his first since his century in the first Ashes test against England in November 2010.